Problem passing store name as var

[jarnott]

This does not work...

Ext.define('GeoCon.view.legislator.List', {
    extend: 'Ext.dataview.List',

    id: 'legislatorList',
    mystore: 'Legislators',
    config: {
        store: this.mystore,
        grouped: true,
        emptyText: 'Loading list of Legislators...',
        itemTpl: [
            '<div class="legislator-list-item">',
                '<span class="legislator-pic" style="background-image: url(http://www.govtrack.us/data/photos/{govtrack_id}-50px.jpeg);"></span>',
                '{lastname}, {firstname} {middlename}',
            '</div>',
        ]
    }
}); 

This works...

Ext.define('GeoCon.view.legislator.List', {
    extend: 'Ext.dataview.List',

    id: 'legislatorList',
    mystore: 'Legislators',
    config: {
        store:  'Legislators',
        grouped: true,
        emptyText: 'Loading list of Legislators...',
        itemTpl: [
            '<div class="legislator-list-item">',
                '<span class="legislator-pic" style="background-image: url(http://www.govtrack.us/data/photos/{govtrack_id}-50px.jpeg);"></span>',
                '{lastname}, {firstname} {middlename}',
            '</div>',
        ]
    }
}); 

It seems to do the call the store properly, but it just does not display the list.
No errors.
sencha-touch-2-b3 and sencha-touch-2-b2

[jarnott]

This problem also shows up when configuring an xclass and passing the store by var.

 items: [
                    {                        
                            xclass: 'GeoCon.view.legislator.List',
                             store:  this.mystore
                      }] 

Makes it difficult to pass in different stores.