public MergeActionChangeValues(GameObject ours, Object ourObject, SerializedProperty ourProperty, SerializedProperty theirProperty)
            : base(ours, null)
        {
            this.ourObject = ourObject;

            this.ourProperty = ourProperty;
            this.theirProperty = theirProperty;

            fieldname = ourObject.GetPlainType() + "." + ourProperty.GetPlainName();

            ourInitialValue = ourProperty.GetValue();
            theirInitialValue = theirProperty.GetValue();

            ourString = SerializedValueString(ourProperty);
            theirString = SerializedValueString(theirProperty);
        }