bug of sencha touch 2 beta3 : the callback function of Ext.Msg.alert

[fuyunzhuri]

there is a bug in sencha touch2 beta3,
the callback function of Ext.Msg.alert doesn't be called!
e.g:
Ext.Msg.alert('info','alert message', function(){
alert('window alert');
});

[mitchellsimoens]

That worked for me using ST2 beta3. In fact I just tested in all releases and it is working (PR1-RC2)