Issue with Muli-Valued property while searching with KM APIs

Hello,

I'm doing a KM Folder search using KM APIs.  The code looks similar to this

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IGenericQueryFactory queryFactory = GenericQueryFactory.getInstance();     IQueryBuilder queryBldr = queryFactory.getQueryBuilder();     IPropertyName ipn = new PropertyName("http://sapportals.com/xmlns/cm", "lang");     IQueryExpression queryExpr =          queryBldr.like(ipn, language.toLowerCase());                         IGenericQuery query = queryFactory.toGenericQuery(queryExpr);     IResourceList result = query.execute(     collection, Integer.MAX_VALUE,7,false);

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Issue: If the property is set as multi-value, then the search does not return any results. 

i.e. In the above code example, if the property "lang" is multi-valued then the search gets no results.

Has anyone run into this issue?

Any help on this would be much appreciated.

Thanks,

Harman