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Add qualification for errors

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Paul Hauner 2021-12-19 14:34:43 +11:00
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sync/optimistic.md
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@ -44,9 +44,11 @@ When a node transitions from the `SYNCING` state it is removed from the set of
`optimistic_roots`.
### Execution Engine Errors
A consensus engine MUST NOT interpret an error or failure to respond to a
message as a `SYNCING`, `VALID` or `INVALID` response. A consensus engine MAY
queue such a message for later processing.
message as a `SYNCING`, `VALID` or `INVALID` response. A message which receives
and error or no response MUST NOT be permitted to modify the fork choice
`Store`. A consensus engine MAY queue such a message for later processing.
### Assumptions about Execution Engine Behaviour