Error when verifying tags signed using 1.7.3.1

Hello, git list. I seem to be unable to verify tags I create and sign using the git -s command in 1.7.3.1 Existing tags (i.e. created with 1.7.2.x, using the same key and GnuPG version) can be verified, but attempts to verify created tags result in the following:

object 791abd4848d86ea98071f35bbce4d4b274ef0788 type commit tag v1.4 tagger name <name@host.com> 1286228562 +0100

Better header detection and regex
-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.9 (Darwin)

iD8DBQBMqkph8Y2TgZsQ1pARAgxrAJ40ATxZw219CWI6FCaDAtbY8UHdoACePF6Q PyNkf67w7AA8hkQqLAYGcyI= =VLWl -----END PGP MESSAGE----- gpg: Signature made Mon 4 Oct 22:42:57 2010 IST using DSA key ID 9B10D690 gpg: BAD signature from "name <name@host.com>" error: could not verify the tag 'v1.4'

I have confirmed that my key is valid (have signed/encrypted/decrypted/verified using it after this error occurred). I have also tried to create a tag using a newly-created key, with the same result. I have attempted to created signed tags in multiple repos. Is this a known bug?