RFR: JDK-8187314: All Cells: must show backing data always

[Marius Hanl]

On Wed, 11 Oct 2023 18:11:44 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> Do you have a SCCE for TreeTableView similar to the TreeView example in the ticket?

It should be the same as `TreeTableView` works basically the same as `TableView`.

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PR Comment: https://git.openjdk.org/jfx/pull/1197#issuecomment-1760292078