"No categories to display" after clearing F-Droid data and cache

• Device OS and version: Android 7.0
• Device model/manufacturer: Samsung
• F-Droid version (in the About screen): 1.11
• F-Droid privileged extension version (if installed): N/A

What did you do? (clear steps if possible)

1. Cleared F-Droid app data and cache
2. Swiped down to refresh default repository
3. Waited for repository to refresh
4. Clicked on 'Categories'
5. Repeated steps 2-4, just to be sure

What did you expect to see?

A list of categories with apps in each category. Note that the repo did download, because the "Latest" page (tab) is populated.

What did you see instead?

A blank page with the string "No categories to display".