$ git clone -n https://src.fedoraproject.org/rpms/python-grafeas.git /var/lib/mock/f40-build-2246200-53801/root/chroot_tmpdir/scmroot/python-grafeas
Cloning into '/var/lib/mock/f40-build-2246200-53801/root/chroot_tmpdir/scmroot/python-grafeas'...
$ git fetch origin e8e4de78229d0cea6bf3c12c05de1b3c627b45ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-grafeas
 * [new ref]         e8e4de78229d0cea6bf3c12c05de1b3c627b45ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8e4de7 Update to 1.9.0 rhbz#2253553