attribute_content.rb in scrivito_sdk-0.15.0

- old
+ new

@@ -72,9 +72,11 @@
   # @api public
   def valid_widget_classes_for(field_name)
   end
 
   def modification_for_attribute(attribute_name, revision=Workspace.current.base_revision)
+    return Modification::UNMODIFIED unless revision
+
     if new?(revision)
       Modification::NEW
     elsif deleted?(revision)
       Modification::DELETED
     else