flutter master branch shows repeated local changes in pubspec.lock after every upgrade #178777

tirthpatel@Tirths-MacBook-Pro ~ % flutter_master upgrade
Your flutter checkout has local changes that would be erased by upgrading. If
you want to keep these changes, it is recommended that you stash them via "git
stash" or else commit the changes to a local branch. If it is okay to remove
local changes, then re-run this command with "--force".

[tirthpatel@Tirths-MacBook-Pro ~ % flutter_master doctor -v
[!] Flutter (Channel master, 3.39.0-1.0.pre-195, on macOS 26.2 25C5037j darwin-arm64, locale en-IN) [914ms]
    • Flutter version 3.39.0-1.0.pre-195 on channel master at /Users/tirthpatel/Development/flutter_master/flutter
    ! The flutter binary is not on your path. Consider adding /Users/tirthpatel/Development/flutter_master/flutter/bin to your path.
    ! The dart binary is not on your path. Consider adding /Users/tirthpatel/Development/flutter_master/flutter/bin to your path.
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision be3e9af464 (2 hours ago), 2025-11-18 22:59:09 -0500
    • Engine revision be3e9af464
    • Dart version 3.11.0 (build 3.11.0-149.0.dev)
    • DevTools version 2.52.0
    • Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios, enable-custom-devices, cli-animations, enable-native-assets,
      enable-swift-package-manager, omit-legacy-version-file, enable-lldb-debugging, enable-uiscene-migration
    • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and upgrades.

[✓] Android toolchain - develop for Android devices (Android SDK version 36.0.0) [819ms]
    • Android SDK at /Users/tirthpatel/Library/Android/sdk
    • Emulator version 36.2.12.0 (build_id 14214601) (CL:N/A)
    • Platform android-36, build-tools 36.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 21.0.8+-14196175-b1038.72)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 26.1.1) [440ms]
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 17B100
    • CocoaPods version 1.16.2

[✓] Chrome - develop for the web [6ms]
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Connected device (2 available) [5.7s]
    • macOS (desktop) • macos  • darwin-arm64   • macOS 26.2 25C5037j darwin-arm64
    • Chrome (web)    • chrome • web-javascript • Google Chrome 142.0.7444.176

[✓] Network resources [1,014ms]
    • All expected network resources are available.

! Doctor found issues in 1 category.