We do setTransition("out"), so we can probably check `if (transition === "out") return;" ?
https://searchfox.org/mozilla-central/rev/5359952d8b0be3e706e8c943c2bef2674723b8a9/browser/components/newtab/content-src/aboutwelcome/components/MultiStageAboutWelcome.jsx#72
Bug 1711430 Comment 2 Edit History
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We do setTransition("out"), so we can probably check
```
const handleTransition = () => {
if (transition === "out") return;"
```
?
https://searchfox.org/mozilla-central/rev/5359952d8b0be3e706e8c943c2bef2674723b8a9/browser/components/newtab/content-src/aboutwelcome/components/MultiStageAboutWelcome.jsx#72