$ git clone -n https://gitee.com/src-opencloudos-rpms/ignition.git /var/lib/mock/dist-oc9-build-253393-84289/root/chroot_tmpdir/scmroot/ignition
Cloning into '/var/lib/mock/dist-oc9-build-253393-84289/root/chroot_tmpdir/scmroot/ignition'...
$ git fetch origin b8f0ab72bf48588f22f0fd1f79ff11ad92e8655c:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ignition
 * [new ref]         b8f0ab72bf48588f22f0fd1f79ff11ad92e8655c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8f0ab7 import ignition-2.15.0-10.tl4