Updating saved data — Yable does NOT mutate rowData. Your onCommit handler must update whatever data store you pass to data={...}. Once the saved value matches the pending value, Yable auto-clears the pending state.
Validation BEFORE commit — use the existing per-column editConfig.validate hook for synchronous client-side validation. Validation failures put the cell in error WITHOUT firing a network call.
Cancellation — every patch carries an AbortSignal. Wire it to fetch if you want to abort in-flight requests when the user starts a new edit on the same cell.