Only add ORES condition when there is one
Only add ORES condition when there is one

In some cases the ORES DatabaseQueryBuilder returns false
and that should NOT be added to the list of db conditions.

One such cases is when all options in a group are selected.

Bug: T200921
Change-Id: I01b42327fda92a257644e0e4f1b119b7dda8f4f1

wikimedia/mediawiki-extensions-PageTriage,wikimedia/mediawiki-extensions-PageTriage,wikimedia/mediawiki-extensions-PageTriage