The query created for authority search always uses `.ci_raw`.. but that doesn't exist for all search field types, including 'Number'. Fridolin added ci_raw for type 'Std Number' in bug 31695 because of this, but I'm not sure that's the right approach globally. We found this when attempting to add a 001 match rule.. local-number defaults to type 'Number' and this never matches anything because 'Number' doesn't include a ci_raw to search against.