lib/mongoid/relations/targets/enumerable.rb in mongoid-3.0.23 vs lib/mongoid/relations/targets/enumerable.rb in mongoid-3.1.0

@@ -161,11 +161,11 @@
           if _loaded?
             _loaded.each_pair do |id, doc|
               yield(doc)
             end
           else
-            _unloaded.each do |doc|
+            unloaded_documents.each do |doc|
               document = _added.delete(doc.id) || _loaded.delete(doc.id) || doc
               _loaded[document.id] = document
               yield(document)
             end
           end
@@ -445,9 +445,13 @@
         def matching_document(location)
           _loaded.try(:values).try(location) ||
             _added[(ul = _unloaded.try(location)).try(:id)] ||
             ul ||
             _added.values.try(location)
+        end
+
+        def unloaded_documents
+          _unloaded.selector.values.any?(&:blank_criteria?) ? [] : _unloaded
         end
       end
     end
   end
 end