The "restore description from localStorage" branch ran inside an effect
whose deps included handleStartPlanning, and that callback regenerated on
every change to initialPlan. So every keystroke would re-fire the effect,
hit the same `getPlanningDescription` value, and overwrite what the user
just typed.
Guard the restore with a one-shot ref so it only runs the first time the
modal opens, and reset the ref when the modal closes so a future re-open
still picks up an updated persisted value.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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