query parameter "required" not being enforced

[ekreiser]

swagger snippet
{
"in": "query",
"name": "since",
"description": "",
"required": true,
"type": "string"
}

in 1.0.6 this was enforced to mean that a "since" value needed to be passed in the query string to the endpoint.
--this would validate
http://domain/api/endpoint&since=blah
--this would fail validation
http://domain/api/endpoint
http://domain/api/endpoint&since=

in 1.0.10 this is only enforcing that a "since" argument name is present but is passing validation even when no value is passed along with the argument
--this would validate
http://domain/api/endpoint&since=
--this would fail validation
http://domain/api/endpoint