$ git clone -n https://src.fedoraproject.org/rpms/unrealircd.git /var/lib/mock/f40-build-763204-122451/root/chroot_tmpdir/scmroot/unrealircd
Cloning into '/var/lib/mock/f40-build-763204-122451/root/chroot_tmpdir/scmroot/unrealircd'...
$ git fetch origin 7fc7407070380e70b127d0a8b650be485d08416c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unrealircd
 * [new ref]         7fc7407070380e70b127d0a8b650be485d08416c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fc7407 Upgrade to 6.1.3 (#2252372)