$ git clone -n https://src.fedoraproject.org/rpms/mon.git /var/lib/mock/f41-build-1022466-18076/root/chroot_tmpdir/scmroot/mon
Cloning into '/var/lib/mock/f41-build-1022466-18076/root/chroot_tmpdir/scmroot/mon'...
$ git fetch origin 78fe5cb4fe57b01886c28960e61a7973a7066821:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mon
 * [new ref]         78fe5cb4fe57b01886c28960e61a7973a7066821 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78fe5cb Eliminate use of obsolete %patchN syntax (#2283636)