In betalabs

1. Log in as a user without New filters beta feature enabled.
2. Go to Preferences - Watchlist and select 'Show only likely problem edits (and hide probably good edits)'. Go to Watchlist to check if the Watchlist preference setting is applied - the checkbox is checked.
3. Enable the beta feature 'New filters for edit review'. The Preferences-Watchlist setting 'Show only likely problem edits (and hide probably good edits)' is preserved.
4. Go to Watchlist - the check box for 'Hide: probably good edits' will be unchecked.