**Issues guidelines**

- Please search in the [documentation](http://querybuilder.js.org) before asking.
- Any issue without enough details won't get any answer and will be closed.
- Help requests must be exhaustive, precise and come with some code explaining the need (use Markdown code highlight).
- Bug reports must come with a simple test case, preferably on jsFiddle, Plunker, etc. (QueryBuilder is available on [jsDelivr](https://www.jsdelivr.com/projects/jquery.query-builder) to be used on such platforms).