[Fizz] Do not allow abort reentrancy#36574
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Aborting is a gate you can only pass through once. A request that is already aborting, already completed, or already fatalled cannot be aborted a second time. Previously this was generally functionally true but you could contrive sequences where an onError would fire after a render fataled. This change makes it more explicit that this is not semantically correct by bailing out of abort if the request is in a status that cannot be aborted.
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Aborting is a gate you can only pass through once. A request that is already aborting, already completed, or already fataled cannot be aborted a second time. Previously this was generally functionally true but you could contrive sequences where an onError would fire after a render fataled. This change makes it more explicit that this is not semantically correct by bailing out of abort if the request is in a status that cannot be aborted.