$ git clone -n https://src.fedoraproject.org/rpms/R-R.devices.git /var/lib/mock/f41-build-side-1-3142747-40009/root/chroot_tmpdir/scmroot/R-R.devices
Cloning into '/var/lib/mock/f41-build-side-1-3142747-40009/root/chroot_tmpdir/scmroot/R-R.devices'...
$ git fetch origin 3cb05132162488998175ec848ff40ee52ede90d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-R.devices
 * [new ref]         3cb05132162488998175ec848ff40ee52ede90d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3cb0513 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild