How can I tell Mobile Safari to stop remembering to never remember my password?
Manually enter your username and password. Tap "Passwords" right above your keyboard. Tap "Save This Password." It still won't autofill when you first load the page, but now you can tap in the username field and hit "Autofill Password." There seems to be no way to actually reset the "Never for this site" setting. Sounds like a job for http://apple.com/feedback.