Merge pull request #7260 from emailweixu/conditional

Fix the output of conditional_block

python/paddle/v2/fluid/layers/control_flow.py

@@ -998,7 +998,7 @@ class ConditionalBlock(object):
 
         out_list = [
             parent_block.var(var_name) for var_name in parent_block.vars
-            if var_name not in intermediate
+            if var_name in intermediate
         ]
 
         step_scope = parent_block.create_var(