$ git clone -n https://src.fedoraproject.org/rpms/python-googleapis-common-protos.git /var/lib/mock/f41-build-side-2-python-2701994-30393/root/chroot_tmpdir/scmroot/python-googleapis-common-protos
Cloning into '/var/lib/mock/f41-build-side-2-python-2701994-30393/root/chroot_tmpdir/scmroot/python-googleapis-common-protos'...
$ git fetch origin 41c3a67b2af93e7c3b85cd23aafe56f3a1925df6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-googleapis-common-protos
 * [new ref]         41c3a67b2af93e7c3b85cd23aafe56f3a1925df6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41c3a67 Unretirement Releng Request: https://pagure.io/releng/issue/12218