RFR: 8306121: Scene not rendered initially when changing scenes after fix for JDK-8296621 [v5]

[Thiago Milczarek Sayao]

On Mon, 8 May 2023 15:26:48 GMT, Jose Pereda <jpereda at openjdk.org> wrote:

>> `SceneChangeShouldNotFocusStageTest` covers the test that the window should start iconified. It does not cover the test where the window pops and then iconifies (causing a visual "weirdness"). I don't think the later is possible on a systemTest.
>
> If not as system test, then could you add `WinIconified` as manual test, with some javadoc as quick instructions on how to check that it works as expected?

@jperedadnr added.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1110#discussion_r1193140429