Pull request doesn't show all changes in the changes tab

If you look at the changes of this pull request Fix debug build by JonasGilg · Pull Request #7 · cosmoscout/opensg-1.8 · GitHub and compare them to the commits, especially the first one: Fix debug build by JonasGilg · Pull Request #7 · cosmoscout/opensg-1.8 · GitHub

You can see, that there are changes in the commit, that don’t appear in the changes tab. For example the removal of the THIS_FILE macro.