$ git clone -n https://src.fedoraproject.org/rpms/R-jsonlite.git /var/lib/mock/f41-build-820924-152387/root/chroot_tmpdir/scmroot/R-jsonlite
Cloning into '/var/lib/mock/f41-build-820924-152387/root/chroot_tmpdir/scmroot/R-jsonlite'...
$ git fetch origin dd8b78a7fbc00b5dfe8225efa0ec79e83db4dda4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-jsonlite
 * [new ref]         dd8b78a7fbc00b5dfe8225efa0ec79e83db4dda4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd8b78a Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild