SessionTabMenu subscribed to $sessions + $projectTree for values it
never rendered (the row was re-read imperatively), so every tab of every
tile re-rendered its menu wrapper on any session-list or project-tree
churn — for a context menu that is almost never open. Same class as the
TreeGroup fix (#72245): derive the three scalars the menu actually shows
(pinId, title, profile) behind a keyed bail-out, so the wrapper only
re-renders when one of them changes.
Brooklyn Nicholson
3d6c32b061