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2019 Community Moderator ElectionWhat are some examples of commonly used practices for naming git branches?Git for beginners: The definitive practical guideHow to selectively merge or pick changes from another branch in Git?Git workflow and rebase vs merge questionsHow do you get git to always pull from a specific branch?Showing which files have changed between two revisionsHow do I properly force a Git push?What is the best (and safest) way to merge a Git branch into master?Git diff against a stashVarious ways to remove local Git changes










1















I've had a situation where a PR diff (from a feature branch to master) is different to a diff generated by comparing that ame feature branch to master.



The only thing I can think of is that GitHub 'freezes' the PR diff at the time of creation, and then that diff gets 'outdated' as master moves on (other feature branches get merged in).



Does GitHub 'freeze' PR diffs? If so, is there any way to 'refresh' it? Or is there a different reason for the diffs to be different?










share|improve this question


























    1















    I've had a situation where a PR diff (from a feature branch to master) is different to a diff generated by comparing that ame feature branch to master.



    The only thing I can think of is that GitHub 'freezes' the PR diff at the time of creation, and then that diff gets 'outdated' as master moves on (other feature branches get merged in).



    Does GitHub 'freeze' PR diffs? If so, is there any way to 'refresh' it? Or is there a different reason for the diffs to be different?










    share|improve this question
























      1












      1








      1








      I've had a situation where a PR diff (from a feature branch to master) is different to a diff generated by comparing that ame feature branch to master.



      The only thing I can think of is that GitHub 'freezes' the PR diff at the time of creation, and then that diff gets 'outdated' as master moves on (other feature branches get merged in).



      Does GitHub 'freeze' PR diffs? If so, is there any way to 'refresh' it? Or is there a different reason for the diffs to be different?










      share|improve this question














      I've had a situation where a PR diff (from a feature branch to master) is different to a diff generated by comparing that ame feature branch to master.



      The only thing I can think of is that GitHub 'freezes' the PR diff at the time of creation, and then that diff gets 'outdated' as master moves on (other feature branches get merged in).



      Does GitHub 'freeze' PR diffs? If so, is there any way to 'refresh' it? Or is there a different reason for the diffs to be different?







      git github






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 6 at 22:39









      zoran119zoran119

      4,50763469




      4,50763469






















          1 Answer
          1






          active

          oldest

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          0














          Essentially yes; Git will freeze the diff of the PR at the point at which the PR was created. If something else has been merged into master subsequent to you creating the PR, the head sections will differ, and as such the diff will also differ.



          In order to see only your changes (and not those made to master in the mean-time), you can use the triple-dot syntax:



          git diff develop...master


          This will essentially show you the "merge base" of these two branches (the last common commit):



          enter image description here



          If additional work is required on the same branch after a pull request is merged, you can still create a subsequent commit on that feature branch and then create a second pull request. This will have the same effect of creating an independent feature branch for the second commit, though this can be useful for tracking associated work. Note that the subsequent pull request would carry the changes from both commits; it contains all of the first commit plus any changes made after it. As such, there is no difference between choosing to merge both pull requests or only merging the latter.






          share|improve this answer

























          • So if it does indeed 'freeze' the diff, does that mean that the set of changes applied to the merge commit when I merge the PR is different to what I'm seeing on the PR screen where I click the merge button?

            – zoran119
            Mar 6 at 23:21










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          0














          Essentially yes; Git will freeze the diff of the PR at the point at which the PR was created. If something else has been merged into master subsequent to you creating the PR, the head sections will differ, and as such the diff will also differ.



          In order to see only your changes (and not those made to master in the mean-time), you can use the triple-dot syntax:



          git diff develop...master


          This will essentially show you the "merge base" of these two branches (the last common commit):



          enter image description here



          If additional work is required on the same branch after a pull request is merged, you can still create a subsequent commit on that feature branch and then create a second pull request. This will have the same effect of creating an independent feature branch for the second commit, though this can be useful for tracking associated work. Note that the subsequent pull request would carry the changes from both commits; it contains all of the first commit plus any changes made after it. As such, there is no difference between choosing to merge both pull requests or only merging the latter.






          share|improve this answer

























          • So if it does indeed 'freeze' the diff, does that mean that the set of changes applied to the merge commit when I merge the PR is different to what I'm seeing on the PR screen where I click the merge button?

            – zoran119
            Mar 6 at 23:21















          0














          Essentially yes; Git will freeze the diff of the PR at the point at which the PR was created. If something else has been merged into master subsequent to you creating the PR, the head sections will differ, and as such the diff will also differ.



          In order to see only your changes (and not those made to master in the mean-time), you can use the triple-dot syntax:



          git diff develop...master


          This will essentially show you the "merge base" of these two branches (the last common commit):



          enter image description here



          If additional work is required on the same branch after a pull request is merged, you can still create a subsequent commit on that feature branch and then create a second pull request. This will have the same effect of creating an independent feature branch for the second commit, though this can be useful for tracking associated work. Note that the subsequent pull request would carry the changes from both commits; it contains all of the first commit plus any changes made after it. As such, there is no difference between choosing to merge both pull requests or only merging the latter.






          share|improve this answer

























          • So if it does indeed 'freeze' the diff, does that mean that the set of changes applied to the merge commit when I merge the PR is different to what I'm seeing on the PR screen where I click the merge button?

            – zoran119
            Mar 6 at 23:21













          0












          0








          0







          Essentially yes; Git will freeze the diff of the PR at the point at which the PR was created. If something else has been merged into master subsequent to you creating the PR, the head sections will differ, and as such the diff will also differ.



          In order to see only your changes (and not those made to master in the mean-time), you can use the triple-dot syntax:



          git diff develop...master


          This will essentially show you the "merge base" of these two branches (the last common commit):



          enter image description here



          If additional work is required on the same branch after a pull request is merged, you can still create a subsequent commit on that feature branch and then create a second pull request. This will have the same effect of creating an independent feature branch for the second commit, though this can be useful for tracking associated work. Note that the subsequent pull request would carry the changes from both commits; it contains all of the first commit plus any changes made after it. As such, there is no difference between choosing to merge both pull requests or only merging the latter.






          share|improve this answer















          Essentially yes; Git will freeze the diff of the PR at the point at which the PR was created. If something else has been merged into master subsequent to you creating the PR, the head sections will differ, and as such the diff will also differ.



          In order to see only your changes (and not those made to master in the mean-time), you can use the triple-dot syntax:



          git diff develop...master


          This will essentially show you the "merge base" of these two branches (the last common commit):



          enter image description here



          If additional work is required on the same branch after a pull request is merged, you can still create a subsequent commit on that feature branch and then create a second pull request. This will have the same effect of creating an independent feature branch for the second commit, though this can be useful for tracking associated work. Note that the subsequent pull request would carry the changes from both commits; it contains all of the first commit plus any changes made after it. As such, there is no difference between choosing to merge both pull requests or only merging the latter.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Mar 6 at 22:59

























          answered Mar 6 at 22:43









          Obsidian AgeObsidian Age

          28.2k72344




          28.2k72344












          • So if it does indeed 'freeze' the diff, does that mean that the set of changes applied to the merge commit when I merge the PR is different to what I'm seeing on the PR screen where I click the merge button?

            – zoran119
            Mar 6 at 23:21

















          • So if it does indeed 'freeze' the diff, does that mean that the set of changes applied to the merge commit when I merge the PR is different to what I'm seeing on the PR screen where I click the merge button?

            – zoran119
            Mar 6 at 23:21
















          So if it does indeed 'freeze' the diff, does that mean that the set of changes applied to the merge commit when I merge the PR is different to what I'm seeing on the PR screen where I click the merge button?

          – zoran119
          Mar 6 at 23:21





          So if it does indeed 'freeze' the diff, does that mean that the set of changes applied to the merge commit when I merge the PR is different to what I'm seeing on the PR screen where I click the merge button?

          – zoran119
          Mar 6 at 23:21



















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