[ExtJS 4.1] Copying of models is broken in 4.1

[DiscoBoy]

I was used to decorate my models in ExtJS 4.0 with additional data properties on the fly (Need this for tree nodes). When copying the decorated record a via b = a.copy() all of my decorations to a were also copied to b.

In ExtJS 4.1 only the fields which are defined in the model a are getting copied! Is this change intended in 4.1 or a bug?

An exmaple code to test (once with 4.0, then 4.1)

Ext.define('Test', {extend: 'Ext.data.Model', fields: ['property1']});

a = Ext.create('Test', {property1: 'Teast A'});
a.set('property2', 'My decoration');
b = a.copy();

console.log("A:", a.data);
console.log("B:",b.data);

See the difference? I really would like to know how I should make exact copies of my model records now. Help and suggestions appreciated!

[Animal]

It's a bug!

Test this override:

Ext.override(Ext.data.Model, {
    copy : function(newId) {
        var me = this;

        return new me.self(me.raw, newId, null, Ext.apply({}, me[me.persistenceProperty]));
    }
});

If that works for you, I'll open a ticket and get the fix in.

[DiscoBoy]

Yes, this works now! You can try it with my example above as well! Thx for fixing this, then I can remove my temprary workaround :-)

[Animal]

It's slated for the 4.1.2 release.