$ git clone -n https://gitee.com/opencloudos-stream/libxcb.git /var/lib/mock/dist-rebuild-after-rpm-check-build-116747-8143/root/chroot_tmpdir/scmroot/libxcb
Cloning into '/var/lib/mock/dist-rebuild-after-rpm-check-build-116747-8143/root/chroot_tmpdir/scmroot/libxcb'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libxcb
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c94c797 !2 【自动升级】libxcb 1.16 Merge pull request !2 from ocs-bot/master