$ git clone -n https://gitee.com/opencloudos-stream/postgresql.git /var/lib/mock/dist-ocs23-base-build-319869-33690/root/chroot_tmpdir/scmroot/postgresql
Cloning into '/var/lib/mock/dist-ocs23-base-build-319869-33690/root/chroot_tmpdir/scmroot/postgresql'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/postgresql
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b7a322 !13 [ICMMXI]:Rebuild for libxml2 in opencloudos-stream Merge pull request !13 from ocs-bot/master