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authorRichard van der Hoff <1389908+richvdh@users.noreply.github.com>2022-07-14 22:52:26 +0100
committerGitHub <noreply@github.com>2022-07-14 21:52:26 +0000
commitfe15a865a5a5bc8e89d770e43dae702aa2a809cb (patch)
tree86a36b867132fd6294cc6358450fe80d506efbca /changelog.d/12943.misc
parentCHANGES.md: fix link to upgrade notes (diff)
downloadsynapse-fe15a865a5a5bc8e89d770e43dae702aa2a809cb.tar.xz
Rip out auth-event reconciliation code (#12943)
There is a corner in `_check_event_auth` (long known as "the weird corner") where, if we get an event with auth_events which don't match those we were expecting, we attempt to resolve the diffence between our state and the remote's with a state resolution.

This isn't specced, and there's general agreement we shouldn't be doing it.

However, it turns out that the faster-joins code was relying on it, so we need to introduce something similar (but rather simpler) for that.
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+Remove code which incorrectly attempted to reconcile state with remote servers when processing incoming events.