$ git clone -n https://src.fedoraproject.org/rpms/R-kernlab.git /var/lib/mock/f41-build-820925-152387/root/chroot_tmpdir/scmroot/R-kernlab
Cloning into '/var/lib/mock/f41-build-820925-152387/root/chroot_tmpdir/scmroot/R-kernlab'...
$ git fetch origin e4ad851e643eb7a498a964d4cd671fcb99ecb124:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-kernlab
 * [new ref]         e4ad851e643eb7a498a964d4cd671fcb99ecb124 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e4ad851 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild