Using revealOrder="backwards" in SuspenseList only works for very short wait times

I realize that this is still experimental, but I figured it would still be good to report bugs. If not, feel free to close this issue.

I was playing around with the examples in https://reactjs.org/docs/concurrent-mode-patterns.html#suspenselist and noticed that revealOrder="backwards" didn't seem to work. The trivia items never appear before the posts. After fiddling around with the example in https://codesandbox.io/s/black-wind-byilt i noticed that it works if the timeout is set around 500 ms or below for the trivia items. But if you set it to for example 1000 ms, it will instead wait until both trivia and posts are available.

revealOrder="forwards" seems to work regardless of how long the timeout is.

I tried changing React version to the latest experimental version (0.0.0-experimental-c76e4dbbc-20210722), but it did not seem to make a difference.

React のドキュメントとリンクされた CodeSandbox にある SuspenseList の例を再現し、revealOrder="backwards" を trivia の遅延 500 ms および 1000 ms で比較します。まず、報告されている experimental React のバージョンと、例の timeout の動作を確認します。原因を特定し、より長い待機時間における backwards 順序の動作を修正するか、明確に対処できれば完了です。