Files
amethyst/commons
Claude e9ff46ac46 fix(dm): gate forwarded callbacks on the bound scope (single-active orchestrator)
The single-active BackwardRelayPager applies forwarded relay callbacks to
whichever scope is currently bound. Its doc already states this is "safe as long
as the caller only advances the bound scope", but a subscription for a
*just-backgrounded* scope (conversation navigation overlap, account switch, a
second pane) can still deliver a late onEvent/onEose/onClosed — which would move
the newly-bound scope's cursors instead. Now that those cursors persist on the
Chatroom/ChatroomList model, that corruption would stick.

Add BackwardRelayPager.isBoundTo(cursors) (cursor identity == scope identity) and
gate each manager's forwarded callbacks on it, so a stray callback from a
non-bound scope is dropped, not mis-applied. The framework's own newEose
bookkeeping still runs. No-op on the happy single-scope path.
2026-06-07 14:48:40 +00:00
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