$ git clone -n https://src.fedoraproject.org/rpms/xautolock.git /var/lib/mock/f45-build-38600-725/root/chroot_tmpdir/scmroot/xautolock
Cloning into '/var/lib/mock/f45-build-38600-725/root/chroot_tmpdir/scmroot/xautolock'...
$ git fetch origin 18c08aa63f8166e3361d7e9e476f3dfd6cbb5006:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xautolock
 * [new ref]         18c08aa63f8166e3361d7e9e476f3dfd6cbb5006 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18c08aa spec cleanup and modernization