master ref seems broken

[ffeast]

Tried to clone the repo and ran into the following error:

$ git clone https://github.com/novutec/WhoisParser.git
Initialized empty Git repository in /home/oleg/WhoisParser/.git/
remote: Counting objects: 390, done.
remote: Compressing objects: 100% (78/78), done.
remote: Total 390 (delta 312), reused 390 (delta 312)
Receiving objects: 100% (390/390), 158.16 KiB | 232 KiB/s, done.
Resolving deltas: 100% (312/312), done.
error: refs/remotes/origin/master does not point to a valid object!
error: Trying to write ref refs/heads/master with nonexistant object 03e033769f4fc1d17244eb83a4ecb4c0c533884a
fatal: Cannot update the ref 'HEAD'.

[ffeast]

$ git --version
git version 1.7.1

Everything is OK when using git 1.9.1 though