bug: Intermittent React error #185 from non-memoized Fuse instances in kea selectors

Bug Description

Bug description

Intermittent React error #185 ("Maximum update depth exceeded") crashes occurring across the PostHog app. This causes the page to become unresponsive, requiring a refresh.

The root cause is kea selectors that create new object references on every evaluation (primarily new Fuse(...) instances for search functionality). When React's useSyncExternalStore detects the "changed" reference, it triggers a re-render, which evaluates the selector again, creating another new reference — causing an infinite loop until React's safety limit (50 nested updates) is hit.

Affected logic files include membersLogic, settingsLogic, dashboardsLogic, infiniteListLogic, playerInspectorLogic, environmentsSwitcherLogic, and ~15 others.

Impact: 22 occurrences in the past 30 days. Low frequency, self-recovering (refresh fixes it).

How to reproduce

Difficult to reproduce reliably — requires specific timing conditions:

• Navigate to a page using one of the affected logic files
• Trigger a state update (e.g., data loads, search input) at the exact moment components are mounting/updating
• Race condition causes the infinite loop

Additional context

Error tracking: https://us.posthog.com/error_tracking/0199e97c-b0a1-75f3-a6c6-8b8782f1c1da

Debug info

Kind: bug

Target area: data_management

Report event: http://go/ticketByUUID/b93b55b2-1adb-47a6-a608-b4ba3460f28f

Session: https://us.posthog.com/project/sTMFPsFhdP1Ssg/replay/019c0352-d93f-7eb0-b999-de4fd1074e99?t=5328

Exceptions: https://us.posthog.com/project/2/error_tracking?filterGroup=%7B%22type%22%3A%22AND%22%2C%22values%22%3A%5B%7B%22type%22%3A%22AND%22%2C%22values%22%3A%5B%7B%22key%22%3A%22%24session_id%22%2C%22value%22%3A%5B%22019c0352-d93f-7eb0-b999-de4fd1074e99%22%5D%2C%22operator%22%3A%22exact%22%2C%22type%22%3A%22event%22%7D%2C%7B%22type%22%3A%22hogql%22%2C%22key%22%3A%22uuid%20%3D%20'019c03a2-d0da-7515-99a4-015e2f3dc66b'%22%2C%22value%22%3Anull%7D%5D%7D%5D%7D

Location: https://us.posthog.com/project/259120/data-management/ingestion-warnings

Persons-on-events mode for project: person_id_override_properties_on_events

Start by inspecting the selectors in membersLogic, settingsLogic, dashboardsLogic, infiniteListLogic, playerInspectorLogic, environmentsSwitcherLogic, and the other affected logic files. Trace where Fuse instances or other object references are created during selector evaluation and review the surrounding React subscription behavior. Done means the affected selectors return stable references across evaluations and the intermittent maximum-update-depth error no longer occurs.