$ git clone -n https://src.fedoraproject.org/rpms/kuser.git /var/lib/mock/f38-build-side-42-init-devel-645615-26401/root/chroot_tmpdir/scmroot/kuser
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-645615-26401/root/chroot_tmpdir/scmroot/kuser'...
$ git fetch origin 1592844e572b4c66b52fe74f4e9e693ddd33a04e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kuser
 * [new ref]         1592844e572b4c66b52fe74f4e9e693ddd33a04e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1592844 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild