Author: bsitu

Description:
This is spotted in the latest master branch from core and pagetriage. When changing the filter option, it throws this warning in the API response:

{"warnings":{"options":{"*":"Validation error for 'NewPagesFeedFilterOptions': not a valid preference"}},"options":"success"}

Looks like this is a side-effect from this API change: https://gerrit.wikimedia.org/r/#/c/37503/

"arbitrary preferences' names must start with userjs- prefix, to avoid any possibility of conflicting with new MediaWiki versions or extensions."

Version: unspecified
Severity: major