Sequelize.DATE does not work with zero-date

[yonjah]

mysql/mariadb dates allow the use of zero value in dates '0000-00-00 00:00:00'
Yet using this dates with Sequelize 3 causes an error when trying to update them to a proper date

CREATE TABLE `test` (
  `key` char(255) NOT NULL,
  `ttl` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
  KEY `key` (`key`)
);

var Test = sequelize.define('test', {
            key: {
                type: Sequelize.STRING,
                primaryKey: true
            },
            ttl: {
                type     : Sequelize.DATE,
                defaultValue: '0000-00-00 00:00:00'
            //or defaultValue: new Date('0000-00-00 00:00:00')
            //or no default value all produce the same result
            },
        }, {
            timestamps: false,
            freezeTableName: true
        });

Test.create({key: 'KEY_' + process.pid})
    .then(function (row) {
        return Test.findById(row.key);
    }).then(function (row) {
        return row.set({'ttl': new Date()}).save();
    }).finally(sequelize.close.bind(sequelize));

Running this code I get the following error -

Unhandled rejection TypeError: originalValue.getTime is not a function
    at Instance.set (node_modules/sequelize/lib/instance.js:348:68)
    at Instance.set (node_modules/sequelize/lib/instance.js:292:16)
    at null.<anonymous> (test.js:33:14)
    at tryCatcher (node_modules/bluebird/js/main/util.js:26:23)
    at Promise._settlePromiseFromHandler (node_modules/bluebird/js/main/promise.js:507:31)
    at Promise._settlePromiseAt (node_modules/bluebird/js/main/promise.js:581:18)
    at Async._drainQueue (node_modules/bluebird/js/main/async.js:128:12)
    at Async._drainQueues (node_modules/bluebird/js/main/async.js:133:10)
    at Immediate.Async.drainQueues [as _onImmediate] (node_modules/bluebird/js/main/async.js:15:14)
    at processImmediate [as _immediateCallback] (timers.js:383:17)