Bug: TextInput with multiline and lineHeight has height issue when controlled

[Unuuuuu]

Description

I'm experiencing a bug with the TextInput component when using it as a controlled component with both multiline and lineHeight properties. This issue occurs only on iOS; it does not occur on Android.

Expected Behavior:

The TextInput should adjust its height according to the content without any unexpected changes.

Actual Behavior:

On iOS, when the TextInput is controlled, the height of the TextInput increases unexpectedly as the number of lines increases.
This issue does not occur when the TextInput is uncontrolled.

Steps to reproduce

1. Create a TextInput component with the following properties:
   • multiline={true}
   • lineHeight set to a specific value (e.g., 60)
   • Controlled by a state variable (value and onChangeText props).
2. Type text into the TextInput to increase the number of lines.

React Native Version

0.75.2
I have confirmed that this issue does not occur in version 0.73.2.

Affected Platforms

Runtime - iOS

Output of npx react-native info

System:
  OS: macOS 14.4
  CPU: (8) arm64 Apple M1 Pro
  Memory: 236.09 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 20.12.2
    path: ~/.nvm/versions/node/v20.12.2/bin/node
  Yarn:
    version: 1.22.22
    path: ~/.nvm/versions/node/v20.12.2/bin/yarn
  npm:
    version: 10.5.0
    path: ~/.nvm/versions/node/v20.12.2/bin/npm
  Watchman:
    version: 2024.07.15.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods:
    version: 1.15.2
    path: /opt/homebrew/bin/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 23.4
      - iOS 17.4
      - macOS 14.4
      - tvOS 17.4
      - visionOS 1.1
      - watchOS 10.4
  Android SDK: Not Found
IDEs:
  Android Studio: 2024.1 AI-241.18034.62.2411.12071903
  Xcode:
    version: 15.3/15E204a
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.12
    path: /usr/bin/javac
  Ruby:
    version: 2.6.10
    path: /usr/bin/ruby
npmPackages:
  "@react-native-community/cli": Not Found
  react: Not Found
  react-native: Not Found
  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

-

Reproducer

https://snack.expo.dev/@holyunwoo/eager-indigo-cereal?platform=ios

Screenshots and Videos

Uncontrolled

Simulator.Screen.Recording.-.iPhone.15.Pro.-.2024-08-25.at.18.18.07.mp4

Controlled

Simulator.Screen.Recording.-.iPhone.15.Pro.-.2024-08-25.at.18.18.27.mp4

[react-native-bot]

⚠️

Newer Version of React Native is Available!

ℹ️

You are on a supported minor version, but it looks like there's a newer patch available - 0.74.5. Please upgrade to the highest patch for your minor or latest and verify if the issue persists (alternatively, create a new project and repro the issue in it). If it does not repro, please let us know so we can close out this issue. This helps us ensure we are looking at issues that still exist in the most recent releases.

[react-native-bot]

⚠️

Newer Version of React Native is Available!

ℹ️

You are on a supported minor version, but it looks like there's a newer patch available - undefined. Please upgrade to the highest patch for your minor or latest and verify if the issue persists (alternatively, create a new project and repro the issue in it). If it does not repro, please let us know so we can close out this issue. This helps us ensure we are looking at issues that still exist in the most recent releases.

[Unuuuuu]

This issue only occurs in the iOS simulator and does not occur when running on an actual device.