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reset(), that are called before/after a filter is applied, to properly support query caches; (IsWitness): new filter; (RelationshipPathBetween,IsDescendantOf,IsLessThanNthGenerationDescendantOf, IsMoreThanNthGenerationDescendantOf,IsChildOfFilterMatch,IsSiblingOfFilterMatch, IsAncestorOf,IsAncestorOfFilterMatch,IsLessThanNthGenerationAncestorOf, IsMoreThanNthGenerationAncestorOf,IsParentOfFilterMatch,HasCommonAncestorWith): use prepare() and reset() to create a proper query cache. Currently the cache was only created once after object creation and never updated. * src/gramps_main.py: Add new filters to the menu. svn: r4171