$ git clone -n https://src.fedoraproject.org/rpms/R-labeling.git /var/lib/mock/f39-build-1535509-36247/root/chroot_tmpdir/scmroot/R-labeling
Cloning into '/var/lib/mock/f39-build-1535509-36247/root/chroot_tmpdir/scmroot/R-labeling'...
$ git fetch origin 014ad9d3a9bb2c9e8500bf46231ca0a7ea6aa1ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-labeling
 * [new ref]         014ad9d3a9bb2c9e8500bf46231ca0a7ea6aa1ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 014ad9d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild