$ git clone -n https://src.fedoraproject.org/rpms/R-cli.git /var/lib/mock/f42-build-3340364-44984/root/chroot_tmpdir/scmroot/R-cli
Cloning into '/var/lib/mock/f42-build-3340364-44984/root/chroot_tmpdir/scmroot/R-cli'...
$ git fetch origin 4af608b867c423ba5eb30f1c34de679918d2f3ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-cli
 * [new ref]         4af608b867c423ba5eb30f1c34de679918d2f3ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4af608b Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild