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sebmarkbage
4ec413b128
Includes #31412.
The issue is that `pushTreeFork` stores some global state when reconcile
children. This gets popped by `popTreeContext` in `completeWork`.
Normally `completeWork` returns its own `Fiber` again if it wants to do
a second pass which will call `pushTreeFork` again in the next pass.
However, `SuspenseList` doesn't return itself, it returns the next child
to work on.
The fix is to keep track of the count and push it again it when we
return the next child to attempt.
There are still some outstanding issues with hydration. Like the
backwards test still has the wrong behavior in it because it hydrates
backwards and so it picks up the DOM nodes in reverse order.
`tail="hidden"` also doesn't work correctly.
There's also another issue with `useId` and `AsyncIterable` in
SuspenseList when there's an unknown number of children. We don't
support those showing one at a time yet though so it's not an issue yet.
To fix it we need to add variable total count to the `useId` algorithm.
E.g. by falling back to varint encoding.
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Co-authored-by: Rick Hanlon <rickhanlonii@fb.com>
Co-authored-by: Ricky <rickhanlonii@gmail.com>
DiffTrain build for [c38e268978](https://github.com/facebook/react/commit/c38e26897848374c34ac6b651fce4a9088ed4dd0)