`TextInput` emits `onChange` event with invalid `selection` on Android browser autofill

Description

On Android, filling a TextInput via browser/system autofill emits an onChange event whose nativeEvent.selection is {start: 0, end: 0} instead of pointing to the end of the inserted text.

The text is correct, but the selection is wrong — the cursor is reported at the start of the field rather than after the autofilled value. The same input entered by pasting (from clipboard) reports the correct selection, and iOS reports the correct selection for both paste and autofill.

<TextInput
  autoComplete="tel"
  onChange={console.log}
/>

Expected vs. actual

iPhone 17 (iOS 26.5) — correct in both cases

✅ Paste +1 (555) 123-4567:

nativeEvent: {
  text: '+1 (555) 123-4567',
  selection: { start: 17, end: 17 }
}

✅ Browser autofill +1 (555) 123-4567:

nativeEvent: {
  text: '+1 (555) 123-4567',
  selection: { start: 17, end: 17 } 
}

Pixel 10 Pro XL (Android 17.0) — autofill is broken

✅ Paste +15551234567:

nativeEvent: {
  text: '+15551234567',
  selection: { start: 12, end: 12 }
}

❌ Browser autofill +15551234567:

nativeEvent: {
  text: '+15551234567',
  selection: { start: 0, end: 0 }
  //         ~~~~~~~~~~~~~~~~~~~~
}

On Android, autofill reports selection: { start: 0, end: 0 } while the text length is 12.

Steps to reproduce

1. Clone https://github.com/nsbarsukov/react-native-android-autofill-bug
2. Run npm ci
3. Run npm start
4. Focus the input and trigger the browser/system autofill suggestion for a phone number.

React Native Version

0.86.0

Affected Platforms

Runtime - Android

Output of npx @react-native-community/cli info

System:
  OS: macOS 26.4.1
  CPU: (8) arm64 Apple M2
  Memory: 166.00 MB / 8.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 26.4.0
    path: /Users/nsbarsukov/.nvm/versions/node/v26.4.0/bin/node
  Yarn: Not Found
  npm:
    version: 11.17.0
    path: /Users/nsbarsukov/.nvm/versions/node/v26.4.0/bin/npm
  Watchman:
    version: 2026.06.08.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods: Not Found
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 25.5
      - iOS 26.5
      - macOS 26.5
      - tvOS 26.5
      - visionOS 26.5
      - watchOS 26.5
  Android SDK: Not Found
IDEs:
  Android Studio: 2026.1 AI-261.23567.138.2611.15646644
  Xcode:
    version: 26.6/17F113
    path: /usr/bin/xcodebuild
Languages:
  Java: Not Found
  Ruby:
    version: 2.6.10
    path: /usr/bin/ruby
npmPackages:
  "@react-native-community/cli": Not Found
  react:
    installed: 19.2.3
    wanted: 19.2.3
  react-native:
    installed: 0.86.0
    wanted: 0.86.0
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: Not found
  newArchEnabled: Not found
iOS:
  hermesEnabled: Not found
  newArchEnabled: Not found

Stacktrace or Logs

nativeEvent: {
  text: '+15551234567',
  selection: { start: 0, end: 0 }
}

MANDATORY Reproducer

https://github.com/nsbarsukov/react-native-android-autofill-bug

Screenshots and Videos

https://github.com/user-attachments/assets/866d4fd3-3852-4ca3-8408-7c0d1b4c17f8

まず npm ci と npm start を使って必須の再現手順を実行し、次に Android のブラウザー／システム autofill に対する TextInput の onChange イベントパスに注目します。autofill されたテキストが挿入された値の末尾に選択範囲を報告し、貼り付け入力と iOS の動作が変わらなければ完了です。