$ git clone -n https://src.fedoraproject.org/rpms/mrpt.git /var/lib/mock/f40-build-2280193-55382/root/chroot_tmpdir/scmroot/mrpt
Cloning into '/var/lib/mock/f40-build-2280193-55382/root/chroot_tmpdir/scmroot/mrpt'...
$ git fetch origin aa3275020961ea1a534713920053eefe76e11ccb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mrpt
 * [new ref]         aa3275020961ea1a534713920053eefe76e11ccb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa32750 Orphaned for 6+ weeks