Adding multiple languages to a project does not update the page

1. Log in
2. Go to a project
3. Click Settings, Languages
4. Select multiple inactive languages via the checkboxes
5. Press the Enable Languages button

Actual:
The languages are added, but are not currently displayed. Refreshing the page shows the correct set

Expected:
The page is updated immediately after the languages are added

Additional:
The page is updated correctly if the languages are added individually