react-jsx-parser auto-generates random keys on every render, causing
full remounts that reset uncontrolled Tabs to defaultValue. Fix by:
- Adding disableKeyGeneration to preserve React reconciliation
- Memoizing bindings to avoid unnecessary re-parses
- Converting TabsContainer to controlled Tabs with useState
- Validating defaultTab against actual panel values
- Clearing stale parseErrors when template/data changes
ajnart
Thomas