commit-id fails after cg-init

Hello!

I tried to start a new project using cogito (current snapshot) and I was immediately greeted by a bug (or a buglet if you want). Let's do this in a clean directory:

$ cg-init defaulting to local storage area $ cg-diff cat: .git/refs/tags/: Is a directory cat: .git/refs/heads/: Is a directory Invalid id: usage: git-cat-file [-t | tagname] <sha1> usage: git-cat-file [-t | tagname] <sha1> Invalid id: usage: diff-cache [-r] [-z] [-p] [--cached] <tree sha1> mkdir: cannot create directory `/tmp/gitdiff.k4FHLY/': File exists $

Not nice.  Trivial debugging shows that it's commit-id that fails:

$ sh -x commit-id 
+ SHA1='[A-Za-z0-9]{40}'
+ SHA1ONLY='^[A-Za-z0-9]{40}$'
+ id=
+ '[' '!' '' ']'
++ cat .git/HEAD
+ id=
+ echo
+ egrep -vq '^[A-Za-z0-9]{40}$'
+ '[' -r .git/refs/tags/ ']'
++ cat .git/refs/tags/
cat: .git/refs/tags/: Is a directory
...

$ ls -al .git/HEAD lrwxrwxrwx 1 proski proski 17 2005-05-03 15:50 .git/HEAD -> refs/heads/master $ cat .git/refs/heads/master $

So, cg-init created an empty .git/refs/heads/master and made .git/HEAD a symlink to it. Now, commit-id reads that file and gets confused.

If anybody has an idea what to put to .git/refs/heads/master please speak up so that cg-init could be fixed.