$ git clone -n https://gitee.com/zhoujiajia111/ffmpeg.git /var/lib/mock/dist-an23-dde-build-430511-73007/root/chroot_tmpdir/scmroot/ffmpeg
Cloning into '/var/lib/mock/dist-an23-dde-build-430511-73007/root/chroot_tmpdir/scmroot/ffmpeg'...
$ git fetch origin 4def591d13f83b01db6216fac578824d062d5505:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/ffmpeg
 * [new ref]         4def591d13f83b01db6216fac578824d062d5505 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4def591 teat