removed has

resolver.go

@@ -275,7 +275,7 @@ func setFields(ctx *hcontext, req *http.Request, input reflect.Value, t reflect.
 			location = locationQuery
 			if v := req.URL.Query().Get(name); v != "" {
 				pv = v
-			} else if req.URL.Query().Has(name) && f.Type.Kind() == reflect.Bool {
+			} else if f.Type.Kind() == reflect.Bool {
 				// name has no associated value, but exists in the map of QueryParams.  This is a boolean value
 				_, vok := req.URL.Query()[name]
 				if vok {