$ git clone -n https://src.fedoraproject.org/rpms/python-h2.git /var/lib/mock/f45-build-30904-648/root/chroot_tmpdir/scmroot/python-h2
Cloning into '/var/lib/mock/f45-build-30904-648/root/chroot_tmpdir/scmroot/python-h2'...
$ git fetch origin 7b78996e69813e9e2e0acc10d73a23c565e5df78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-h2
 * [new ref]         7b78996e69813e9e2e0acc10d73a23c565e5df78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b78996 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild