Re: [jira] [Updated] (FLEX-34853) ListCollectionView.getItemIndex throws RTE when the Sort's sortFields change

[Mihai Chira <mi...@gmail.com>]

> I’m a little concerned that someone somewhere is relying on sharing a
> mutable SortField, so I’d be careful about making a change like that. At
> least, add an mx_internal flag to get back old behavior so if someone does
> complain they have a way of recovering.

Great idea. In the end I decided to go for a three-step process:
1) marking the setters and reverse() functions as deprecated (in
v4.15) - complete
2) placing them behind mx_internal (which includes renaming them) and
making reverse() work with immutable Sort and SortField objects (in
v4.16 - could you please create this version tag in Jira?)
3) completely removing the state setters (in 4.17)

This way people can have more time to adapt to the changes.