git-describe --contains fails on given tree

Hi,

for some reason, git-describe cannot figure out v1.17~15^2^2 in the pam_mount tree, despite me being able to actually give a description that would fit the contains syntax:

$ git clone git://pam-mount.git.sf.net/gitroot/pam-mount/pam-mount Initialized empty Git repository in /dev/shm/pam-mount/.git/ remote: Counting objects: 7261, done. remote: Compressing objects: 100% (1819/1819), done. remote: Total 7261 (delta 5557), reused 6990 (delta 5348) Receiving objects: 100% (7261/7261), 1.40 MiB | 832 KiB/s, done. Resolving deltas: 100% (5557/5557), done.

$ cd pam-mount/ $ git describe --contains v1.17~15^2^2 fatal: cannot describe '95ce932690dfce8cbe50b6a3a8949e41a54c8966'

(Expected to get back: v1.17~15^2^2)

Why would it not want to return something? Possible bug?

Using git 1.7.1 on openSUSE 11.3.

thanks, Jan