field_value;
		}

		if ( $need_update ) {
			/**
			 * Getter method for note2 field.
			 *
			 * @var callable $getter2_again
			 */
			$getter2_again = array( $note2, 'get_' . $field_name );
			/**
			 * Setter method for note1 field.
			 *
			 * @var callable $setter1
			 */
			$setter1 = array( $note1, 'set_' . $field_name );
			// Get note2 field again because it may have been changed during the comparison.
			call_user_func( $setter1, call_user_func( $getter2_again ) );
			return true;
		}
		return false;
	}

	/**
	 * Convert a value to array if it's a stdClass.
	 *
	 * @param mixed $obj variable to convert.
	 * @return mixed
	 */
	private static function possibly_convert_object_to_array( $obj ) {
		if ( $obj instanceof \stdClass ) {
			return (array) $obj;
		}
		return $obj;
	}
}