The holder counted against 20 GiB while the bus caps incoming at 8 GiB, so the bus refused writes before
the holder said refused naming the cap, and the 80 % finding came too late (running review F2). The cap is
read from incoming's binding (the object store's fill); IncomingCap, 8 GiB, is said only where none is read,
and the manifest's row holds it equal to max-mib. An abandoned transfer was dropped only on the next publish,
and the transfers state's own lifetime dropped its key while its parts stayed: transfers keeps for good, and
each open transfer has a key in the new state idle with its own time to live, whose end drops it (re-armed
for the rest when it took a part since). registry_incoming reports the bound cap.
Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig
jschoubben
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