Show (or replace) the scene-identity banner.
Re-showing the same kind is a no-op so the watchdog can call this on every failed probe without DOM churn; changed replaces unreachable but never the reverse (a flapping server must not demote a definitive scene-swap verdict).
changed
unreachable
Show (or replace) the scene-identity banner.
Re-showing the same kind is a no-op so the watchdog can call this on every failed probe without DOM churn;
changedreplacesunreachablebut never the reverse (a flapping server must not demote a definitive scene-swap verdict).