If the "value" config is passed to a selectfield, "getValue()" does not call the specified "getValue" function defined in Ext.field.Select (on line 49921 in sencha-touch-all-debug), but the optimizedGetter function (line 3285).

Maybe it's an even bigger problem for other fields or components, too.

Example:

Code:
var fieldset = new Ext.form.Panel({
    items: [{
        xtype: 'fieldset',
        items: [{
            xtype: 'selectfield',
            store: [...],
            value: 1 // this disturbs the config
        }]
    }]
});