lvm2.git has been regenerated
FYI, I've just regenerated the lvm2.git repository on sources.redhat.com (aka sourceware.org) from the CVS repository.
http://sources.redhat.com/git/gitweb.cgi?p=lvm2.git;a=summary
That means you will probably want to clone from scratch:
git://sources.redhat.com/git/lvm2.git
ssh://sources.redhat.com/git/lvm2.git
http://sources.redhat.com/git/lvm2.git
and that references to SHA hashes in the old tree are no longer valid.
There is also an lvm2.git repository on et.redhat.com that will shortly be mirroring this one.