Possible issue with multiple queries sent in one go with manticorsearch

I'm using mysql2 to connect to Manticorsearch. It fas a feature where it sends back multiple resultsets for a query, for faceted search. Essentially multple groupby-like views of the main query. It's one SQL query. But in addition to this query type, I need to send another one in the same go, as it have optimizations if I do so, in case the queries have a common base. So I do the following:

SELECT id, this, that
FROM searchindex 
LIMIT 10 
FACET name 
FACET year 
FACET topic; 
SELECT id, something, andsuch 
FROM searchindex 
LIMIT 100

Generic MySQL client apps like HeidiSQL handle this correctly, I get 5 resultsets: main query, 3 facets plus one after the semicolon. Through mysql2 I also get 5, but only the first 4 are correct, the 5th is a single row, not 100, and not with the field I selected. Can help in testing.

Start by reproducing the semicolon-separated Manticoresearch query through mysql2 and compare the fifth resultset with the results from HeidiSQL. Trace how mysql2 handles multiple resultsets after the three FACET resultsets; done means the second query returns 100 rows with the selected fields.