Merge pull request #9080 from gem/kitefault

Caching the KiteFault surface

Author: micheles

openquake/hazardlib/source/kite_fault.py

@@ -21,6 +21,7 @@
 import collections
 import numpy as np
 from typing import Tuple
+from openquake.baselib import general
 from openquake.hazardlib import mfd
 from openquake.hazardlib.geo import Point, Polygon
 from openquake.hazardlib.geo.mesh import Mesh
@@ -129,7 +130,7 @@ def as_simple_fault(cls, source_id, name, tectonic_region_type,
                    floating_y_step)
         return self
 
-    @property
+    @general.cached_property
     def surface(self) -> KiteSurface:
         """
         :returns: