$ git clone -n https://gitee.com/fundawang/postgresql.git /var/lib/mock/dist-an23-build-292757-65148/root/chroot_tmpdir/scmroot/postgresql
Cloning into '/var/lib/mock/dist-an23-build-292757-65148/root/chroot_tmpdir/scmroot/postgresql'...
$ git fetch origin 5edccb1fe06e28ff1bbd9db558a2d08e8f1e14f4:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/postgresql
 * [new ref]         5edccb1fe06e28ff1bbd9db558a2d08e8f1e14f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5edccb1 Add requirement on system-rpm-config for /usr/bin/pg_config