action=options API should allow resetting of chosen preferences, instead of the all-or-nothing approach it currently has.
This would be particularly useful for the newly implemented semi-arbitrary userjs- prefs (see bug 40124), as it's not possible to entirely remove them without killing them all, along with "real" preferences.
Version: 1.21.x
Severity: enhancement
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=43960