.changed() detects value as changed when set from null to null.

[JrSchild]

If the value of an instance was null and is .set() to null, Sequelize detects the value as changed.
Using sequelize 3.1.1.

[Thomathan]

instance.js has a primitives array and only compares values that match it. Since null is a primitive it should be included as well.

However, typeof null returns object which seems to be bug in ecmascript.

Will probably need to explicitly check for null.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/null
http://www.ecma-international.org/ecma-262/5.1/#sec-4.3.2
http://www.ecma-international.org/ecma-262/5.1/#sec-4.3.11

[JrSchild]

Thank you for the fast response. I can confirm that it fixes the issue.