Thanks for the replies!

Am 28.12.2010 um 13:00 schrieb textmate-request@lists.macromates.com:

I don't think this is TextMate's fault. Let me guess: You're using the ProjectPlus plug-in. Does the issue below sound like your problem?

Yes, you'd be right. I'll keep an eye on TextMate. So far, I've deactivated labels for git.

They usually aren't accurate anyway, in my experience.

Yes, I've noticed that, too. Especially when I use manually created projects rather than just taking whole directories.