$ git clone -n https://gitee.com/fundawang/postgresql.git /var/lib/mock/dist-an23-build-353796-71027/root/chroot_tmpdir/scmroot/postgresql
Cloning into '/var/lib/mock/dist-an23-build-353796-71027/root/chroot_tmpdir/scmroot/postgresql'...
$ git reset --hard e88779127d9f04dea8bcc39e212e746f1e674f05
HEAD is now at e887791 15.6