Multilanguage pages are displayed in english in notifications macro (activity stream) for a wiki in french

I reproduced this issue with the standard Sandbox page and with another page that I have created and translated in french:

Set the wiki to french (monolanguage and multilanguage) and the pages on the activity stream appear in what seems to be their default language.
The test is on a subwiki, for a main wiki that is in french as well.