$ git clone -n https://gitee.com/wenyuzifang/flex.git /var/lib/mock/dist-an23-build-471700-74118/root/chroot_tmpdir/scmroot/flex
Cloning into '/var/lib/mock/dist-an23-build-471700-74118/root/chroot_tmpdir/scmroot/flex'...
$ git fetch origin 315866793e97a3ee6d42263af944028a91cfba7b:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/flex
 * [new ref]         315866793e97a3ee6d42263af944028a91cfba7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3158667 Update code from upstream