$ git clone -n https://src.fedoraproject.org/rpms/R-diffobj.git /var/lib/mock/f41-build-820889-152378/root/chroot_tmpdir/scmroot/R-diffobj
Cloning into '/var/lib/mock/f41-build-820889-152378/root/chroot_tmpdir/scmroot/R-diffobj'...
$ git fetch origin 86ea4e9c9c9e091fa4b9fe69fafcc1662bea8945:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-diffobj
 * [new ref]         86ea4e9c9c9e091fa4b9fe69fafcc1662bea8945 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86ea4e9 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild