Gitk/Cygwin bug: phony local changes

Greetings,

git clone git://git.kernel.org/pub/scm/git/git.git cd git gitk

with Cygwin build of git version 1.6.0.3.523.g304d0 in Windows XP SP2 with Cygwin dll version 1.5.24 results to gitk showing "Local uncommitted changes, not checked in to index" entry in the history tree and if I select that entry, it seems to indicate that all files have changed but without any actual content changes.

git status doesn't show any changes.

If I run git diff (which displays no changes) or git reset and then run gitk again, there is no longer that "Local uncommitted changes..." entry.

Since it was suggested on #irc, I tried "git config --global core.trustctime false" but that didn't help, which I suppose was expected since the documentation talks about differences between the index and the working copy and I haven't added anything to the index.

I can reproduce this problem with another (private) repository as well.