There are two methods which allow callers to choose which fields to
return. These were originally added for performance, so you only ask for
what you need. However empirically the performance gain doesn't mean
anything, because it is dwarfed by the query that was just executed.
However, it does open the code up to bugs because we forget to ask for
the right fields. So now it just returns all fields when querying for
apks.
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