Allow RRD when more than one edge on link

state/modelverse_state/main.py

@@ -293,14 +293,8 @@ class ModelverseState(object):
                         # And access its value
                         if target in self.values and self.values[target] == value:
                             # Found a match
-                            if len(self.outgoing[e1]) > 1:
-                                return None
-                            else:
-                                matches.append(e1)
-        if len(matches) == 0:
-            return None
-        else:
-            return [self.edges[e][0] for e in matches]
+                            matches.append(e1)
+        return [self.edges[e][0] for e in matches]
 
     def delete_node(self, node):
         if node == self.root: