$ git clone -n https://src.fedoraproject.org/rpms/R-tweenr.git /var/lib/mock/f38-build-side-42-init-devel-846006-28422/root/chroot_tmpdir/scmroot/R-tweenr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-846006-28422/root/chroot_tmpdir/scmroot/R-tweenr'...
$ git fetch origin cb428e7de05556cf9f84780316db712f4bedff62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-tweenr
 * [new ref]         cb428e7de05556cf9f84780316db712f4bedff62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb428e7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild