#9 Queries from cache always return single match

[SukkoPera]

When a CDDB query by disc id & category is fulfilled from cache, only one match is returned, even if the same search with cache disabled would return multiple results.

This has the annoying effect that when applications first do a query that returns multiple matches and ask the user to select the match they prefer, if they don't choose the first match, when they do search again at a later time, they will get a single results that will be different from what the user had selected before.