fix(react-native): refresh displayed survey translations

[marandaneto]

Problem

Displayed React Native surveys keep their old translations when the person's language changes. Later survey events also keep the old language.

Addresses #4175.

Changes

• Refresh visible translations after person-property changes without waiting for feature flags to reload.
• Preserve the current question, submitted answers, draft text, ratings, and choice selections. Submit selected choices using their current translated labels.
• Keep submission and dismissal language consistent with the displayed survey, without sending duplicate shown events.
• Add 16 regression tests and a patch changeset for posthog-react-native.

Validation

• Reproduction-first tests failed against the original implementation (13 failures). Choice-preservation tests exposed three failures before the choice-state fix.
• Full React Native suite: 44 files and 713 tests pass with Node 24.20.0 and pnpm 11.7.0.
• Formatting, package lint, correctness lint, TypeScript checks, and React Native build pass.
• Exact-HEAD autoreview completed at c17cff461a710c958c69e40947d06ec3cbedbe63. Its one finding assumed reordered choices. That finding was rejected after checking that the current RN display-order helper always returns the original choice array.
• Tests use DOM replacements for native primitives. No device or emulator testing was performed. Choice preservation assumes translated arrays retain corresponding choice positions.

Release info Sub-libraries affected

Libraries affected

• All of them
• posthog-js (web)
• posthog-js-lite (web lite)
• posthog-node
• posthog-react-native
• @posthog/react-native-plugin
• @posthog/react
• @posthog/ai
• @posthog/convex
• @posthog/next
• @posthog/nextjs-config
• @posthog/nuxt
• @posthog/openfeature-node-provider
• @posthog/openfeature-web-provider
• @posthog/rollup-plugin
• @posthog/webpack-plugin
• @posthog/types
• @posthog/browser-common

Checklist

• Tests for new code
• Accounted for the impact of any changes across different platforms
• Accounted for backwards compatibility of any changes (no breaking changes!)
• Took care not to unnecessarily increase the bundle size

If releasing new changes

• Ran pnpm changeset to generate a changeset file

Existing patch changeset included in this branch.

🤖 Agent context

Autonomy: Human-driven (agent-assisted)

Pi implemented and validated this user-directed fix using repository tools. The Pi autoreview helper reviewed the committed branch. Work was kept inside the React Native survey implementation, with no dependency or configuration changes. Local session reference: 510ebebc-a750-45a5-88ce-92821ccd3256.

The person-property notification and index-based choice state preserve in-progress answers instead of remounting the survey. Human review is required before merging.

[greptile-apps]

_{Reviews (1): Last reviewed commit: "fix(react-native): refresh displayed sur..." | Re-trigger Greptile}