It looks like yesterday's OS X Mavericks update removed the ability to force passwords to save in Safari when if a website requested that they not be saved. Previously, users could check a box in the Password section of the Safari settings that read "Allow Autofill for websites that request passwords not be saved". Why the setting was removed is unclear, and the release notes from the update only say "Improves AutoFill compatibility in Safari," with no mention of the removal.
Are you disappointed with this removal? Let us know below in the comments.
Thanks to Todd Mundt for the tip!