We work through visual studio 2015 with git. We have a central repository (GitLab) with a single "master" branch. Two people cloned the repository.
The first guy added the file test-new-file-v.txt to the file. He changed the solution file (.sln) and changed the line "VisualStudioVersion = 14.0.23107.0". Then it commits to your local repository, and then pushes that commit to the central repository (GitLab). After that, we looked at this commit in the central repository (GitLab): 
The second guy added the file testgit.txt to the file. He also changed the solution file (.sln), but did not change the VisualStudioVersion line. Then he wants to pull out the central repository (GitLab) before clicking.
- The second guy had a conflict. He merges through the visual studio of 2015 and sees that the other guy made a mistake when changing "VisualStudioVersion = 14.0.24720.0" to "VisualStudioVersion = 14.0.23107.0". The second guy wants to leave the string "VisualStudioVersion = 14.0.24720.0" unchanged. He selected the local state "VisualStudioVersion = 14.0.24720.0" for this line and merged. After that, he pushes these two commits in the central repository (GitLab).
- After that, we looked at the history and changes in the central repository (GitLab) and saw that commit commit from the second guy:

We see that the central storage solution file (GitLab) contains the line "VisualStudioVersion = 14.0.24720.0" and this is correct, but we do not see this line replace the line "VisualStudioVersion = 14.0.23107.0", because the commit from the first guy contains this line and before compiling the merge.
My questions:
- Is this the right behavior? I expect to see in the merge that the line "VisualStudioVersion = 14.0.23107.0" is changed to "VisualStudioVersion = 14.0.24720.0".
- How can I achieve behavior in which I can see all the changes?
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