RFR: 8296653: ComboBox promptText is not displayed when the value is reset

[Marius Hanl]

On Wed, 26 Nov 2025 16:11:52 GMT, Ziad El Midaoui <zelmidaoui at openjdk.org> wrote:

> The issue occurred because the skin marks the button cell as “empty” when the value becomes null.
> With the fix clearing the ComboBox value re-shows the prompt text.
> Tested using the code present in the bug.

I think a test would be good here.

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PR Comment: https://git.openjdk.org/jfx/pull/1989#issuecomment-3584979890