Steps to reproduce

1. Load the Clocks demo (ensure that it's a recent version which contains qt_generate_deploy_qml_app_script())
2. Build it in Release mode
3. Using the console, cd into the build directory and run the following commands:

   cmake --install . --prefix testinstall
   open testinstall/clocks.app
   

Expected outcomes (Qt 6.7)

The app runs normally.

Actual outcomes (Qt 6.8)+

The app crashes with EXC_BAD_ACCESS (SIGKILL (Code Signature Invalid))

Workarounds

The auto-generated macdeployqt command is

'~/Qt/6.8.4/macos/bin/macdeployqt' 'clocks.app' '-appstore-compliant' '-always-overwrite' '-executable=clocks.app/Contents/PlugIns/libqtquick2plugin.dylib' '-executable=clocks.app/Contents/PlugIns/libqmlplugin.dylib' '-executable=clocks.app/Contents/PlugIns/libmodelsplugin.dylib' '-executable=clocks.app/Contents/PlugIns/libworkerscriptplugin.dylib'

• One workaround is to manually copy+paste the console command above, but remove the "-appstore-compliant" option.
• Another workaround is to add the "-codesign=..." option to DEPLOY_TOOL_OPTIONS (see the example at https://doc.qt.io/qt-6/qt-generate-deploy-app-script.html#example)

(EDIT: Copying the command as-is is sufficient to make it work, but this is probably just a lucky coincidence. Adding "-codesign" is the correct workaround)