Offline mode is not refreshing

Reproduction steps

• open a page X with the offline backend
• in the backend, edit the page content of page X
• go to a page Y, then back to X

Expected result

The page is quickly refreshed in the background with the new page content.

Actual

Nothing is refreshed.

Details

1. this is caused by the import order refactoring done in 0.12
2. a functional test should cover this case, but fails to catch the issue for a reason that we need to understand