URI parameters default value

[tardypad]

The apiblueprint documentation for the URI parameters section shows the usage of a default value
https://apiblueprint.org/documentation/specification.html#def-uriparameters-section

However there seems to be some issues with it:

• if I define it alone under a parameter, it doesn't get displayed in the result
• if I define it alongside a "Members" field, parsing fails