[4.2 nightlies] TreeStore nodeHash created too late

Code:

---

Ext.define('M', {
  extend : 'Ext.data.Model'
})

var ts = new Ext.data.TreeStore({
            model : 'M',
            proxy : {
                type : 'memory',
                data : [
                    { id : 123 }
                ]
            }
        });
       
       
ts.getById(123).id;

---

=> this.nodeHash is undefined

This worked fine in 4.1.x, 4.2.0.265. Setting an empty root in the store config 'solves' it...

Thanks for the report! I have opened a bug in our bug tracker.