$ git clone -n https://src.fedoraproject.org/rpms/cpp-hocon.git /var/lib/mock/f42-build-3402215-45132/root/chroot_tmpdir/scmroot/cpp-hocon
Cloning into '/var/lib/mock/f42-build-3402215-45132/root/chroot_tmpdir/scmroot/cpp-hocon'...
$ git fetch origin 96200869f123b1ef4893659041e78b7c8b882e81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cpp-hocon
 * [new ref]         96200869f123b1ef4893659041e78b7c8b882e81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9620086 Orphaned for 6+ weeks