(First mentioned in T293507)
List of steps to reproduce:
- Activate ContentTranslation and deactivate VectorLegacy.
- Edit any page with Visual Editor (or New Wikitext Editor) and check the drop-down user menu.
- Exit the editing mode (either by saving or by simply clicking on the Page tab).
What happens?:
The user menu entries Translations and Uploaded media get multiplied each time.
What should have happened instead?:
The entries should only be displayed once.