$ git clone -n https://src.fedoraproject.org/rpms/stp.git /var/lib/mock/f40-build-781237-131566/root/chroot_tmpdir/scmroot/stp
Cloning into '/var/lib/mock/f40-build-781237-131566/root/chroot_tmpdir/scmroot/stp'...
$ git fetch origin 4baa38fa23c036403b82d9a733d1c0030d76c02d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stp
 * [new ref]         4baa38fa23c036403b82d9a733d1c0030d76c02d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4baa38f Rebuild for cryptominisat 5.11.21