$ git clone -n https://src.fedoraproject.org/rpms/kdesdk-thumbnailers.git /var/lib/mock/f38-build-side-42-init-devel-809655-28258/root/chroot_tmpdir/scmroot/kdesdk-thumbnailers
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-809655-28258/root/chroot_tmpdir/scmroot/kdesdk-thumbnailers'...
$ git fetch origin efb63451e44715a97de1f32d917a60b58cf008e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdesdk-thumbnailers
 * [new ref]         efb63451e44715a97de1f32d917a60b58cf008e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at efb6345 feat: 22.12.3