Should display a warning when processing a setting which is not registered
|Reported by:||westi||Owned by:||westi|
The settings api has a whitelist mechanism which is enforced in MU but not in plain WordPress.
As the two are converging we need a easy way of warning plugin developers that they are not using the whitelist.
If would be good to have something like the _deprecated* functionality when WP_DEBUG is enabled for this.