That will need to trace back to another question(o...

# announcements

[edwardwongtl]

That will need to trace back to another question(or bug maybe?), let say I have two list<T>

val list_a = listOf<T>(..)
val list_b = listOf<T>(...)
list_a.clear()
list_a.addAll(list_b)

In this case list_a will only contain shallow copies, using .copy() seems to be able to give me a new instance( but I know empty .copy should return the same instance).