dillon1000/react

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setState() in componentDidMount() should flush synchronously even with createBatch() (#12466)

* Add a failing test for setState in cDM during batch.commit()

* Copy pasta

* Flush all follow-up Sync work on the committed batch

* Nit: Use performSyncWork

Call performSyncWork right after flushing the batch. Does effectively
the same thing by reusing the existing function.

Also added some comments.

* Delete accidentally duplicated test
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Dan Abramov authored 7a833dad95b3059ebfdfba44d3fa68e1301d8e6a Parent c44665e
Changed paths2 files
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M packages/react-dom/src/__tests__/ReactDOMRoot-test.internal.js ModifiedM packages/react-reconciler/src/ReactFiberScheduler.js Modified
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