git difftool --dir-diff error in the presence of symlinks to directories

Reproduce like this (using git 2.4.3):

git init mkdir foo touch foo/bar git add . git commit -m "Initial commit." ln -s foo link git add . git commit -m "Add link to foo." git difftool -d HEAD^ HEAD

That last command outputs:

fatal: Unable to hash /Users/isbadawi/test/link hash-object /Users/isbadawi/test/link: command returned error: 128

Briefly looking at the 'git difftool' source it looks like it uses the output of 'git diff --raw' and calls 'hash-object' on any object whose mode is nonzero, including symlinks.

I'm not sure what the right thing to do here is -- just thought I'd report this failure.

Thanks, Ismail