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Clear deletions in detachFiber (#20401)
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This was added in a later step of the refactor but since `deletions`
array already landed, clearing it should, too.

I think it's unlikely that this causes GC problems but worth
adding anyway.
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acdlite authored Dec 9, 2020
1 parent b9680ae commit 7659949
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1 change: 1 addition & 0 deletions packages/react-reconciler/src/ReactFiberCommitWork.new.js
Original file line number Diff line number Diff line change
Expand Up @@ -1074,6 +1074,7 @@ function detachFiberMutation(fiber: Fiber) {
// and one of its descendants throws while unmounting a passive effect.
fiber.alternate = null;
fiber.child = null;
fiber.deletions = null;
fiber.dependencies = null;
fiber.firstEffect = null;
fiber.lastEffect = null;
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1 change: 1 addition & 0 deletions packages/react-reconciler/src/ReactFiberCommitWork.old.js
Original file line number Diff line number Diff line change
Expand Up @@ -1074,6 +1074,7 @@ function detachFiberMutation(fiber: Fiber) {
// and one of its descendants throws while unmounting a passive effect.
fiber.alternate = null;
fiber.child = null;
fiber.deletions = null;
fiber.dependencies = null;
fiber.firstEffect = null;
fiber.lastEffect = null;
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