$ git clone -n https://src.fedoraproject.org/rpms/R-tmvnsim.git /var/lib/mock/f41-build-821082-152411/root/chroot_tmpdir/scmroot/R-tmvnsim
Cloning into '/var/lib/mock/f41-build-821082-152411/root/chroot_tmpdir/scmroot/R-tmvnsim'...
$ git fetch origin 1007b4141813df0537cdd431881c7be0601b0a1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-tmvnsim
 * [new ref]         1007b4141813df0537cdd431881c7be0601b0a1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1007b41 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild