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Remove incorrect debug assertion in state-db #9283
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arkpar
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A0-please_review
bkchr
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Jul 6, 2021
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ghost
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Jul 6, 2021
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This removes an assertion that pending state can't be pinned. There's a race that allows for such states to be accessed indeed. Since in-memory changes to state-db are applied after the blockchain metadata changes. Pinning such states is a no-op anyway, since all pins are short-lived and by the time metadata changes are applied it is guaranteed that the state won't be reverted.
See paritytech/polkadot#3414 for context.