$ git clone -n https://gitee.com/src-opencloudos-rpms/gstreamer1.git /var/lib/mock/dist-oc9-build-46359-14592/root/chroot_tmpdir/scmroot/gstreamer1
Cloning into '/var/lib/mock/dist-oc9-build-46359-14592/root/chroot_tmpdir/scmroot/gstreamer1'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gstreamer1
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 918cf9b import gstreamer1-1.20.4-4.tl4