Query parse errors are not replaced

[glye]

Q	A
Bug report?	kind of
Feature request?	kind of
BC Break report?	no
RFC?	no
Version/Branch	0.15+ (stable)

As the doc says: "By default in no debug mode all errors will be logged and replace by a generic error message. Only query parsed error won't be replaced."
https://github.com/overblog/GraphQLBundle/blob/f35dda77dd57179f3696b9217f1a383eb86621b5/docs/error-handling/index.md

I'm trying to ensure that on production, the end user never sees any exceptions, only generic error messages. But I don't see a way to do this for query parse errors, like when I request /graphql and get a "Bad Request: Must provide query parameter". How can those exceptions be replaced?

See also #582

PRs
0.13: #1128 (closed)
0.15: #1131