syntax error in empty search value

On my 5.0.2 Manticore if I run query with an empty value like:
SELECT *, (id&4294967295) uniqueId FROM … WHERE MATCH('((@(…, …, …) =“”)
just got Empty set OK…
BUT after installed Manticore 6.2 all my queries dropped with error:
error=P08: syntax error, unexpected ‘"’ near '"

what can I do with it?

Create an issue on github, so the dev team can look into it.