$ git clone -n https://src.fedoraproject.org/rpms/bolt.git /var/lib/mock/f40-build-752652-116814/root/chroot_tmpdir/scmroot/bolt
Cloning into '/var/lib/mock/f40-build-752652-116814/root/chroot_tmpdir/scmroot/bolt'...
$ git fetch origin aafb0ce60030c4c67493c2c6fa823d1ea2435401:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bolt
 * [new ref]         aafb0ce60030c4c67493c2c6fa823d1ea2435401 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aafb0ce 0.9.6 release