Changing column case, does not update constraint case

DROP TABLE IF EXISTS `s_order_documents`;

CREATE TABLE IF NOT EXISTS `s_order_documents` (

  `ID` int(11) NOT NULL AUTO_INCREMENT,

  `date` date NOT NULL,

  `type` int(11) NOT NULL,

  `userID` int(11) NOT NULL,

  `orderID` int(11) unsigned NOT NULL,

  `amount` double NOT NULL,

  `docID` int(11) NOT NULL,

  `hash` varchar(255) COLLATE utf8_unicode_ci NOT NULL,

  PRIMARY KEY (`ID`),

  KEY `orderID` (`orderID`),

  KEY `userID` (`userID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1 ;

-- --------------------------------------------------------

--

-- Tabellenstruktur für Tabelle `s_order_documents_attributes`

--

DROP TABLE IF EXISTS `s_order_documents_attributes`;

CREATE TABLE IF NOT EXISTS `s_order_documents_attributes` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `documentID` int(11) DEFAULT NULL,

  PRIMARY KEY (`id`),

  UNIQUE KEY `documentID` (`documentID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1 ;

ALTER TABLE `s_order_documents_attributes`

  ADD CONSTRAINT `s_order_documents_attributes_ibfk_1` FOREIGN KEY (`documentID`) REFERENCES `s_order_documents` (`ID`) ON DELETE CASCADE ON UPDATE NO ACTION;

ALTER TABLE `s_order_documents_attributes` DROP FOREIGN KEY `s_order_documents_attributes_ibfk_1`;

ALTER TABLE `s_order_documents` CHANGE COLUMN `ID` `id` INT(11) NOT NULL AUTO_INCREMENT FIRST;

ALTER TABLE `s_order_documents_attributes` ADD CONSTRAINT `s_order_documents_attributes_ibfk_1` FOREIGN KEY (`documentID`) REFERENCES `s_order_documents` (`id`) ON UPDATE NO ACTION ON DELETE CASCADE;

SHOW CREATE TABLE s_order_documents_attributes;