[Couldn't Reproduce] Crash when adding a folder

[theiostream]

This is an old one. I did a patch where the use of NSFastEnumeration for iterating was basically removed from the whole project, since the most prominent message in all crash reports was:

*** Terminating app due to uncaught exception 'NSGenericException', reason: '*** Collection <__NSArrayM: 0x106758d0> was mutated while being enumerated.'

A friend of mine reported the issue as soon as he had installed Installous alongside AppSync, which I assume can be causing the issue with some heavy patching on the "force applications to stay there" side. But can't be sure.

I hope it's solved, but I'll keep it here to remind me still having it crash is a possibility.