$ git clone -n https://src.fedoraproject.org/rpms/R-R.cache.git /var/lib/mock/f41-build-side-1-2817916-32992/root/chroot_tmpdir/scmroot/R-R.cache
Cloning into '/var/lib/mock/f41-build-side-1-2817916-32992/root/chroot_tmpdir/scmroot/R-R.cache'...
$ git fetch origin 853455f7e90c6dc515f167d69d57c9116d1e6fc1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-R.cache
 * [new ref]         853455f7e90c6dc515f167d69d57c9116d1e6fc1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 853455f Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild