problem viewing git.git with gitk on cygwin

hi all

i'm seeing a problem with gitk on cygwin.  if i try and view the history of 
git itself, it seems to stop at version 22dcbb.  interestingly, the next 
commit 3ef378 has an embedded CTRL-Z character in the commit message.

possible DOS EOF handling bug? or is there a repo setting i need to be 
tweaking?

using git version 1.5.2.2, installed using the cygwin package setup tool.

thanks
ray