F-droid should allow forced repo refresh

• Device OS and version: 7.1 Unlegacy
• Device model/manufacturer: irrelevant
• F-Droid version (in the About screen): 1.2.2
• F-Droid privileged extension version (if installed):

What did you do? (clear steps if possible)

Installed f-droid on a fresh install

What did you expect to see?

A button or menu item where I can tell to refresh the repos

What did you see instead?

Nothing. I now need to wait at least an hour, until it decides to do that.