some years ago I reported this issue on gitorious, which yielded an HTTP500 when the repository contained a signed commit:
https://issues.gitorious.org/issues/193 (it's now down, but hopefully it'll reappear on archive.org)
and it'll prevent Launchpad from automatically mirroring git repositories (which is paramount to be able to automatically update PPA with recipes)
https://bugs.launchpad.net/bzr-git/+bug/1372149
some years ago I reported this issue on gitorious, which yielded an HTTP500 when the repository contained a signed commit:
https://issues.gitorious.org/issues/193 (it's now down, but hopefully it'll reappear on archive.org)
and it'll prevent Launchpad from automatically mirroring git repositories (which is paramount to be able to automatically update PPA with recipes)
https://bugs.launchpad.net/bzr-git/+bug/1372149