The recorder now appends off its mailbox (9fda2919), so two separate Tells
are two bursts the append loop may commit and drain one at a time. The
#538 tests told Good.Tag and Bad.Tag separately and relied on both landing
in one drain pass; when the loop drained Good.Tag alone, Bad.Tag was left
alone at the head, every later pass failed with no sibling success (the
outage path), and nothing was ever abandoned. Run in isolation the
recorder test class failed 4 of 4 times (QueuedDepth 1, expected 0).
The five tests now send the pair as one DependencyValueBatch, and the
in-memory outbox appends a batch under one lock so a concurrent peek sees
it all-or-nothing, as a group commit is. 6 of 6 isolated runs green.
Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV
Joseph Doherty
0961b3ed93