in household, force validTo of address to be NULL

src/Bundle/ChillPersonBundle/Entity/Household/Household.php

@@ -514,6 +514,8 @@ class Household
 
             if ($iterator->valid()) {
                 $current->setValidTo($iterator->current()->getValidFrom());
+            } else {
+                $current->setValidTo(null);
             }
         }
     }