$ git clone -n https://src.fedoraproject.org/rpms/R-vctrs.git /var/lib/mock/f41-build-838574-159751/root/chroot_tmpdir/scmroot/R-vctrs
Cloning into '/var/lib/mock/f41-build-838574-159751/root/chroot_tmpdir/scmroot/R-vctrs'...
$ git fetch origin ffe22f24e69e98f69b65f034b3d9a83c83d6f576:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-vctrs
 * [new ref]         ffe22f24e69e98f69b65f034b3d9a83c83d6f576 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffe22f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild