I used to always see diffs in SourceTree of my .pbxproj. As of about a month ago, I see "diff suppressed". This happens consistently across Xcode projects. I do not have any files set to binary in a .gitattributes file, and `git diff` on the command line shows me the diff. How can I troubleshoot this problem? It's a pain to use an external diff, as sometimes I want to be able to stage or discard lines or hunks.
I'm running Xcode 4.6.2 and SourceTree 1.5.6.
