$ git clone -n https://src.fedoraproject.org/rpms/R-unitizer.git /var/lib/mock/f38-build-side-42-init-devel-565931-25897/root/chroot_tmpdir/scmroot/R-unitizer
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-565931-25897/root/chroot_tmpdir/scmroot/R-unitizer'...
$ git fetch origin 0819ce4807261777ae51597ace42328be503ebfe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-unitizer
 * [new ref]         0819ce4807261777ae51597ace42328be503ebfe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0819ce4 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild