$ git clone -n https://src.fedoraproject.org/rpms/R-utf8.git /var/lib/mock/f41-build-821413-152537/root/chroot_tmpdir/scmroot/R-utf8
Cloning into '/var/lib/mock/f41-build-821413-152537/root/chroot_tmpdir/scmroot/R-utf8'...
$ git fetch origin 4ce7fcb705b9a5a19b99cdeeeaeda45269a1a538:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-utf8
 * [new ref]         4ce7fcb705b9a5a19b99cdeeeaeda45269a1a538 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ce7fcb Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild