bug with the display inside a subpatcher

Hi all !

I have a little bug with Javascript.
I want create objects in an existing subpatcher, but the display is very strange…
Try this:

Save this JS code in "test.js".

inlets = 1;
outlets = 2;
function test_bug()
{
// find th patcher buggy
tt=this.patcher.firstobject;
while (tt)
{
if (tt.maxclass == "patcher")
{
if (tt.subpatcher(0).name == "buggy")
{
obj1 = tt.subpatcher(0);
}
}
tt=tt.nextobject;
}

// create the object "receive~ buggy" inside the patcher "buggy"
obj1.newdefault(20,20,"receive~","buggy");
}

function bang()
{
test_bug();
}

And make this patch:

#P button 46 27 46 0;
#P window setfont "Sans Serif" 9.;
#P window linecount 1;
#N vpatcher 30 89 630 489;
#P pop;
#P newobj 46 105 73 196617 patcher buggy;
#P newex 46 83 52 196617 js test.js;
#P connect 2 0 0 0;
#P window clipboard copycount 3;

Bang, and look inside the patcher buggy …. !
Close, and re-open this…

If I create the subpatcher in JS, I have no problem when I make object inside this.
The mistake seems to be that I create object in a "closed" subpatcher.