Merge branch 'master' into code-generation

HPAC · Jul 14, 2017 · b184b16 · b184b16
2 parents e8a352b + 00fe9b2
commit b184b16
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/matchpy/matching/many_to_one.py b/matchpy/matching/many_to_one.py
@@ -509,12 +509,12 @@ def _collect_variable_renaming(
         position[-1] += 1
         if isinstance(expression, Operation):
             if isinstance(expression, CommutativeOperation):
-                for operand in expression:
+                for operand in op_iter(expression):
                     position.append(0)
                     cls._collect_variable_renaming(operand, position, variables)
                     position.pop()
             else:
-                for operand in expression:
+                for operand in op_iter(expression):
                     cls._collect_variable_renaming(operand, position, variables)
 
         return variables