[CBAS] Query workbench hangs for an invalid query

CBAS Build : 265

The Query workbench UI just hangs when the following invalid query is issued. The Cancel button on the UI doesn't work either. The only alternative is to refresh the page and get going.

SELECT br.brewery_id, COUNT AS num_beers
FROM beers br
GROUP BY br.brewery_id
HAVING num_beers > 30 and br.brewery_id not null;

The same query when executed through REST API/cbq errors out as expected - "msg": "Syntax error: In line 1 >> SELECT br.brewery_id, COUNT AS num_beers FROM beers br GROUP BY br.brewery_id HAVING num_beers > 30 and br.brewery_id not null;<< Encountered \"not\" at column 123. "