Hi,

While testing for basex-stream i encountered a weird behavior

in the OPTIONS query command.

After creating the query

```xquery

declare option output:method "json";

declare option output:json "lax";

```

the response of OPTIONS was:

`json=lax=true,method=json`

Which seems wrong.

I event tried setting cdata-section-elements to "pre, code"

and the response had a double comma ("cdata-section-elements=pre,,code,method=xml")

Is this a bug or is there some deterministic method of parsing the response?

Thanks,

Alex