$ git clone -n https://gitee.com/wency_cn/libavc1394.git /var/lib/mock/dist-an23-build-502131-74794/root/chroot_tmpdir/scmroot/libavc1394
Cloning into '/var/lib/mock/dist-an23-build-502131-74794/root/chroot_tmpdir/scmroot/libavc1394'...
$ git fetch origin c3bd5d811e39fae6bfdd378dfb9f29e8b57616dc:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libavc1394
 * [new ref]         c3bd5d811e39fae6bfdd378dfb9f29e8b57616dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3bd5d8 Update code from upstream