[1.7.0-60] "git gc" still crashes with cmalloc error

I just upgraded to 1.7.0-60 and ran the same "git gc" command that was failing in: http://cygwin.com/ml/cygwin/2009-08/msg00620.html and I got a cmalloc error again. I captured strace output but I don't know how much of it you need. Here are the last few lines before the crash: 56 241

Re: [1.7] "C:\cygwin\bin\git.exe: *** fatal error - could not load shell32, Win32 error 487"

I've seen this problem in cygwin 1.5 and it appeared to be related to the way that symlinks were implemented. It became such a problem that I had to remove all my use of symlinks in my git repository at that time. I switched to cygwin 1.7 and its symlinks seem to be much better behaved. Sin