- counts were absurdly high and wrong
- workaround evaluates daughter query in #SEPARATE mode even for count-query in #JOIN mode, but counts each count-key at most once per hit
- generic result-sorting: added CQueryResult::sortByIndex(), ::sortByHit(), and ::mapIndex, struct CQueryResultIndex, and template CResultHitLess<>
~ because new #JOIN counting strategy requires that result hits are sorted by BreakNo
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