lib/neo4j/shared/persistence.rb in neo4j-9.5.3 vs lib/neo4j/shared/persistence.rb in neo4j-9.6.0

@@ -240,10 +240,17 @@
                                  .set("#{element_name}.`#{attribute}` = COALESCE(#{element_name}.`#{attribute}`, 0) + {by}")
                                  .params(by: by).limit(1)
                                  .pluck("#{element_name}.`#{attribute}`").first
       return false unless new_attribute
       self[attribute] = new_attribute
-      set_attribute_was(attribute, new_attribute)
+
+      if defined? ActiveModel::ForcedMutationTracker
+        # with ActiveModel 6.0.0 set_attribute_was is removed
+        # so we mark attribute's previous value using attr_will_change method
+        clear_attribute_change(attribute)
+      else
+        set_attribute_was(attribute, new_attribute)
+      end
       true
     end
 
     private