title: Xcode crashes on git commit
body: <p>Xcode git commit has started crashing.</p>
  
  <p>I recently upgraded my code in preparation for IOS9 XCode7 to work with swift2.0 and did some file reorg using 'git mv' and had it all working, i.e. it committed okay, they while using Xcode7 beta6 it started crashing when I tried to do commits.  I have been doing commits from a terminal for a while and when Xcode7 was released I tried again but it still crashes without any explanation.  Before I started the conversion I stopped using the source directory and made a separate copy to use during the conversion.  In order to get to a working state I have reverted to XCode 6.4 and used the old code but it also crashes. I have even created a new project to no avail.</p>
  
  <p>So, is there something known solution to this problem?  And is git "too clever by half' and finds other repositories and causes problems there?</p>