geometry: Profile: Fix points sorting.

src/Model/Geometry/Profile.py

@@ -180,7 +180,7 @@ class Profile(object):
         elif column == 'z':
             predicate = lambda p: p.z
 
-        self._profiles = sorted(
+        self._points = sorted(
             self._points,
             key=predicate,
             reverse=is_reversed