$ git clone -n https://src.fedoraproject.org/rpms/R-prettydoc.git /var/lib/mock/f38-build-side-42-init-devel-958274-28787/root/chroot_tmpdir/scmroot/R-prettydoc
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-958274-28787/root/chroot_tmpdir/scmroot/R-prettydoc'...
$ git fetch origin fd18ba2f2be1ceea72c4f93e0f6dd02d6e5aa914:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-prettydoc
 * [new ref]         fd18ba2f2be1ceea72c4f93e0f6dd02d6e5aa914 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd18ba2 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild