$ git clone -n https://gitee.com/opencloudos-stream/ffmpeg.git /var/lib/mock/dist-ocs23-loongarch64-build-144150-9765/root/chroot_tmpdir/scmroot/ffmpeg
Cloning into '/var/lib/mock/dist-ocs23-loongarch64-build-144150-9765/root/chroot_tmpdir/scmroot/ffmpeg'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ffmpeg
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 273cf54 !17 [I9A9HY]:Rebuild for svt-av1 in opencloudos-stream Merge pull request !17 from ocs-bot/master