$ git clone -n https://gitee.com/opencloudos-stream/libXext.git /var/lib/mock/dist-ocs23-build-228051-17280/root/chroot_tmpdir/scmroot/libXext
Cloning into '/var/lib/mock/dist-ocs23-build-228051-17280/root/chroot_tmpdir/scmroot/libXext'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libXext
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c0cae0d !2 【自动升级】libXext 1.3.6 Merge pull request !2 from ocs-bot/master