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Default fixDifferentiatorParentTagForUnflattenCase to true with MC opt-out#57220

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javache wants to merge 1 commit into
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javache:export-D108613362
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Default fixDifferentiatorParentTagForUnflattenCase to true with MC opt-out#57220
javache wants to merge 1 commit into
react:mainfrom
javache:export-D108613362

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@javache

@javache javache commented Jun 16, 2026

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Summary:
Flip the React Native feature flag fixDifferentiatorParentTagForUnflattenCase default to true so the differentiator parentTag fix is on by default across all platforms

Changelog: [Internal]

Wire fbios + fb4a to MobileConfig params so we can opt out server-side if needed.

Because the MC defaults are true, the feature activates for all FB-app users on land; setting the param to false server-side is the kill switch.

Reviewed By: zeyap

Differential Revision: D108613362

…t-out

Summary:
Flip the React Native feature flag `fixDifferentiatorParentTagForUnflattenCase` default to `true` so the differentiator `parentTag` fix is on by default across all platforms

Changelog: [Internal]

Wire fbios + fb4a to MobileConfig params so we can opt out server-side if needed.

Because the MC defaults are `true`, the feature activates for all FB-app users on land; setting the param to `false` server-side is the kill switch.

Reviewed By: zeyap

Differential Revision: D108613362
@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jun 16, 2026
@meta-codesync meta-codesync Bot closed this in ea17ef8 Jun 16, 2026
@meta-codesync meta-codesync Bot added the Merged This PR has been merged. label Jun 16, 2026
@meta-codesync

meta-codesync Bot commented Jun 16, 2026

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This pull request has been merged in ea17ef8.

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