$ git clone -n https://src.fedoraproject.org/rpms/R-mlbench.git /var/lib/mock/f40-build-789492-135730/root/chroot_tmpdir/scmroot/R-mlbench
Cloning into '/var/lib/mock/f40-build-789492-135730/root/chroot_tmpdir/scmroot/R-mlbench'...
$ git fetch origin 40529364bfce040a0d906e81d845d19df024283e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-mlbench
 * [new ref]         40529364bfce040a0d906e81d845d19df024283e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4052936 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild