std.json cannot read an array floats back from file

[Yuri via Digitalmars-d-learn]

Hi there,

consider the following simple use case:

   import std.json;
   float[] floats = [1,2,3];
   JSONValue j = "{}".parseJSON;
   j.object["floats"] = floats;
   std.file.write("test.json", j.toString);
   JSONValue jj = readText("test.json").parseJSON;
   jj.object["floats"].array[1].floating.writeln;

It is expected to print '2' in the console, however an exception 
is thrown:

std.json.JSONException@/build/ldc-I3nwWj/ldc-0.17.1/runtime/phobos/std/json.d(235): JSONValue is not a floating type

while the below works fine:

   import std.json;
   float[] floats = [1,2,3];
   JSONValue j = "{}".parseJSON;
   j.object["floats"] = floats;
   j.object["floats"].array[1].floating.writeln;

any pointers to what could be going wrong?