Comment 1 for bug 2043822

Regardless of different intervals, I agree that having the setting use the due date instead of the checkout date makes a lot of sense.

I could see an argument for allowing early renewals but only 2 days before the due date, for example. If it were based on due date, this would be an easy update with no math needed, but currently every policy would have to be different (14 days would be 12, 21 days would be 19, etc), which can be time consuming with thousands of circ policies.