$ git clone -n https://src.fedoraproject.org/rpms/moon-buggy.git /var/lib/mock/f41-build-772576-13506/root/chroot_tmpdir/scmroot/moon-buggy
Cloning into '/var/lib/mock/f41-build-772576-13506/root/chroot_tmpdir/scmroot/moon-buggy'...
$ git fetch origin 85bff4de4b17a86da1d89e405b74bf43e066badb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/moon-buggy
 * [new ref]         85bff4de4b17a86da1d89e405b74bf43e066badb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85bff4d Eliminate use of obsolete %patchN syntax (#2283636)