When did setGlobalValue() become busted for anything beyond a scalar or simple array?

[i960]

I see multiple references all throughout the forums on using setGlobalValue/getGlobalValue with objects, etc. and yet this behavior is entirely broken in 12.x.

setGlobalValue("key", [ 1, [ 2 ] ]) returns [ 1, null ] with getGlobalValue("key")
setGlobalValue("key", [ 1, volume() ]) can't store the series object for volume(), but does work when not using an array.

var obj = new Object;
obj.something = 1;
setGlobalValue("key", obj) returns null with getGlobalValue("key")

Why is this function so broken now? If it's not a single dimensional array of a flat value it's simply unreliable to downright unusable.

[ewdeg98]

Use JSON.stringify to store the object as a string then use JSON.parse to convert it back to an object.

var objectTest = new Object;
objectTest.id =  1;

setGlobalValue("objectTest", JSON.stringify(objectTest))

var savedObjectTest = JSON.parse(getGlobalValue("objectTest"))
// Will Print 1
debugPrintln(saved.id);