Bug in std.json or my problem

[Craig Dillabaugh]

So perhaps I am the only person in the world using std.json, but 
I was wondering
if the following code should work.

=====================================================================
import std.json;
import std.conv;
import std.stdio;

struct Person {
     string name;
     float income;

     this (string name, float income) {
         this.name = name;
         this.income = income;
     }

     this(JSONValue js) {
         this.name = to!string(js["name"]);
         /* This next line crashes with .. JSONValue is not 
floating type.
          *      to!float( js["income"].toString()) works.
          */
         this.income = js["income"].floating;
     }

     JSONValue toJSON() {
         JSONValue json;
         json["name"] = JSONValue(this.name);
         json["income"] = JSONValue(this.income);
         return json;
     }
}


int main(string[] argv) {
     Person bob = Person("Bob", 0.0);

     string bob_json = bob.toJSON().toString();

     Person sonofbob = Person(parseJSON(bob_json));

     writeln(sonofbob.toJSON().toPrettyString());

     return 0;
}
=======================================================================

The crash is caused because the 'income' field with value 0.0 is
output as 0 (rather than 0.0) and when it is read this is 
interpreted
as an integer.

Shouldn't this work?