$ git clone -n https://gitee.com/lzq11122/ffmpeg.git /var/lib/mock/dist-an23-epao-build-448212-73365/root/chroot_tmpdir/scmroot/ffmpeg
Cloning into '/var/lib/mock/dist-an23-epao-build-448212-73365/root/chroot_tmpdir/scmroot/ffmpeg'...
$ git fetch origin fa6a9069168e2e1420965b4581df05a66c8d0e8c:KOJI_FETCH_HEAD
From https://gitee.com/lzq11122/ffmpeg
 * [new ref]         fa6a9069168e2e1420965b4581df05a66c8d0e8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa6a906 test