AppCode keeps adding a comment in pbxproj

Hi,
it looks like my AppCode is all the time adding a comment /* MyAppName */ in the project.pbxproj.

TestTargetID = 8BA5C7D817E759380071549D /* MyAppName */;

This is a bit annoying because it all the time makes my project as modified in the repository. When I push the changes, people using XCode then push again the other version without comments