Gitlab changing file permissions

I recently migrated several iOS app projects to Gitlab.com, but the problem I am having now is that Gitlab alters file permissions for executable files. This is making my projects fail to build after retrieving them from the repo. What would the best way be to handle this?

If that’s the case, then it’s definitely a bug and you should report it in https://gitlab.com/gitlab-org/gitlab-ce/issues. It may be a bug with the migration process, so make sure to include that info as well.