$ git clone -n https://gitee.com/src-anolis-os/gstreamer1-plugins-bad-free.git /var/lib/mock/dist-an8.7-build-185856-60640/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free
Cloning into '/var/lib/mock/dist-an8.7-build-185856-60640/root/chroot_tmpdir/scmroot/gstreamer1-plugins-bad-free'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/gstreamer1-plugins-bad-free
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 800069b Add doc sub package