lib/mongoid/relations/referenced/many_to_many.rb in mongoid-3.0.4 vs lib/mongoid/relations/referenced/many_to_many.rb in mongoid-3.0.5

@@ -144,9 +144,12 @@
               base.send(foreign_key).clear
             )
           end
           target.clear do |doc|
             unbind_one(doc)
+            unless metadata.forced_nil_inverse?
+              doc.changed_attributes.delete(inverse_foreign_key)
+            end
           end
         end
         alias :nullify_all :nullify
         alias :clear :nullify
         alias :purge :nullify