Scenario: Duplicate: Fix data traversal and duplicate method.

src/Model/Geometry/Reach.py

@@ -99,6 +99,13 @@ class Reach(SQLSubModel):
 
         return ok
 
+    def _data_traversal(self,
+                        predicate=lambda obj, data: True,
+                        modifier=lambda obj, data: None,
+                        data={}):
+        for p in self._profiles:
+            p._data_traversal(predicate, modifier, data)
+
     def profile(self, i):
         """Returns profile at index i