$ git clone -n https://src.fedoraproject.org/rpms/R-V8.git /var/lib/mock/f41-build-822010-152654/root/chroot_tmpdir/scmroot/R-V8
Cloning into '/var/lib/mock/f41-build-822010-152654/root/chroot_tmpdir/scmroot/R-V8'...
$ git fetch origin 5be376e0405875dea664b359e9888c7979e67ee8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-V8
 * [new ref]         5be376e0405875dea664b359e9888c7979e67ee8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5be376e Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild