$ git clone -n https://src.fedoraproject.org/rpms/slashem.git /var/lib/mock/f41-build-858275-168340/root/chroot_tmpdir/scmroot/slashem
Cloning into '/var/lib/mock/f41-build-858275-168340/root/chroot_tmpdir/scmroot/slashem'...
$ git fetch origin b70b173a87bdd9f6151e78a62202d9780c3935e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/slashem
 * [new ref]         b70b173a87bdd9f6151e78a62202d9780c3935e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b70b173 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild