$ git clone -n https://src.fedoraproject.org/rpms/R-deldir.git /var/lib/mock/f41-build-820888-152378/root/chroot_tmpdir/scmroot/R-deldir
Cloning into '/var/lib/mock/f41-build-820888-152378/root/chroot_tmpdir/scmroot/R-deldir'...
$ git fetch origin ef8e295777121f4440d6ed4a43c1078798cb0b99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-deldir
 * [new ref]         ef8e295777121f4440d6ed4a43c1078798cb0b99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef8e295 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild