Steps to Reproduce

 export LC_ALL=zh_CN.UTF-8
qml qtbug137871.qml

• Observe buttons are translated
• Remove files translations/qtmultimedia_zh_*qm from the Qt installation
• Launch app again: Note buttons are no longer translated

It looks like an ambiguous context/message

Original report against PySide

When a PySide6 Qt Quick application is deployed as a frozen executable (with PyInstaller or Nuitka) under the zh_CN locale, the standard button captions generated by QtQuick.Controls.Dialog (OK, Cancel, etc.) remain in English. The translations appear only if the file qtmultimedia_zh_CN.qm is shipped alongside the executable, even though the application itself does not import or use qtmultimedia.

Steps to Reproduce

1. Unzip the attached example, build it with pyinstaller or nuitka under standalone mode, do not manually copy any .qm files.
   Freezing command (example, PyInstaller):

pyinstaller main.py

1. Run the generated executable on a system whose locale is Simplified Chinese or call QLocale.setDefault("zh_CN") as in the example.
2. Observe the dialog buttons: English (OK, Cancel).
3. Copy qtmultimedia_zh_CN.qm from the PySide6 installation’s translations/ directory into the same relative path under the frozen app.
4. Run again, buttons now show Chinese (确定, 取消).

Expected Behavior
Dialog standard buttons should be translated to Chinese as long as the core translation files (qtbase_zh_CN.qm, qtquickcontrols2_zh_CN.qm, etc.) are present. Translations should not depend on the presence of any qtmultimedia translation files when the module is not used.

Actual Behavior
Without qtmultimedia_zh_CN.qm, button texts remain in English.