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* access: an epoch's root is never droppedtv3 days1-0/+4
| | | | | | | | | | | | | | | A REFUSALS naming the swarm's first change made the node receiving it judge that change again in a document that isn't empty, refuse it as "a change without dependencies that isn't the epoch's root", and drop it with everything built on it: its whole document. The first epoch's root is now the first change a document holds, as it comes to an empty one or as it is in one; a change judged again on a peer's word is never refused for having no dependencies; and drop_taken refuses to drop an epoch's root, or anything that would leave nothing kept, logging an error instead. Review finding 1 (critical).
* swarm: changes taken unjudged, dropped (REFUSALS)tv4 days1-0/+139
A node refusing changes a peer brought tells it which broke a rule; the peer judges them itself, and if its rules refuse them too, drops them with all built on them (its document forked without them, a fresh actor), quarantining its own writes among them. Wire version 42. Auth plan M6 (rejoin on taint).