The admin operator filter was a free-text input that broke three ways at
once: its visibility hangs off the query response (scope === "all") and
its value is part of the query key, so every keystroke started a new
query, data went undefined for the round-trip, and the input UNMOUNTED
mid-keystroke (lost focus, list blanking that read as a page reload).
Filtering also silently failed — the server matches the operator by
exact username, so partial text matched nothing.
- keepPreviousData on the shifts query: previous data (and scope) stays
live during refetch, so filter controls never unmount and the list
never blanks on preset/filter changes.
- The filter is now a <select> of operators that HAVE shifts: the server
returns the distinct list (signed z-reports + the open shift's holder)
on GET /api/shifts, admin scope only — operators still can't see other
names. Exact match by construction.
Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V
julian
1de209be48