$ git clone -n https://gitee.com/src-opencloudos-rpms/blaze.git /var/lib/mock/dist-oc9-epol-build-53403-14768/root/chroot_tmpdir/scmroot/blaze
Cloning into '/var/lib/mock/dist-oc9-epol-build-53403-14768/root/chroot_tmpdir/scmroot/blaze'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/blaze
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04a6538 import blaze-3.8-2.tl4