MUST-FIX 3 -- SocialFellowshipPageController.SetPageVisible is edge-triggered
on a bool that survives a generation reset unchanged while the panel stays
open, so a reconnect never re-sends 0x00A6 and fellow vitals freeze for the
rest of the new session. SocialPanelController.ResetSessionDeclaration
clears the fellowship page's latch (SocialFellowshipPageController.
ResetPageVisibleLatch, this commit's counterpart) and re-evaluates the
existing "window shown AND Fellowship active" conjunction, wired into
RetailUiRuntime.ResetSessionTransientUi -- a seam that already runs on
every generation reset. A still-open Fellowship page re-declares; a closed
or other-tab page correctly stays silent.
SF-4 -- SocialPanelController's constructor subscribed an anonymous lambda
to UiTabPanel.ActivePageChanged with no way to remove it; Dispose only set
a flag. A tab switch after Dispose still reached
UpdateFellowshipPageVisibility and issued a Runtime command, since Tick's
own _disposed guard doesn't cover this event path. Stored the handler as a
field and unsubscribe it in Dispose.
Also adds the panel-level D4 conjunction test mechanism SF-5 flagged as
missing (the only prior D4 test exercised the PAGE controller's own
edge-trigger directly, never SocialPanelController's "window shown AND
Fellowship active" logic or its ActivePageChanged subscription).
Per docs/research/2026-08-12-fa4-review-mechanism.md.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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