$ git clone -n https://src.fedoraproject.org/rpms/R-littler.git /var/lib/mock/f40-build-789479-135730/root/chroot_tmpdir/scmroot/R-littler
Cloning into '/var/lib/mock/f40-build-789479-135730/root/chroot_tmpdir/scmroot/R-littler'...
$ git fetch origin a850f4b0d90c4c3790c1ac6e597bd99b2388907a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-littler
 * [new ref]         a850f4b0d90c4c3790c1ac6e597bd99b2388907a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a850f4b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild