$ git clone -n https://gitee.com/src-opencloudos-rpms/ignition.git /var/lib/mock/dist-oc9-build-136985-79483/root/chroot_tmpdir/scmroot/ignition
Cloning into '/var/lib/mock/dist-oc9-build-136985-79483/root/chroot_tmpdir/scmroot/ignition'...
$ git fetch origin 64e63c63cac95ddf086713a33b8d39beb2bdc07e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ignition
 * [new ref]         64e63c63cac95ddf086713a33b8d39beb2bdc07e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64e63c6 import ignition-2.15.0-6.tl4