title: using alias in Ext.data.store for model
body: <p>Can any one help me on my issue? </p>
  
  <p>I have created a model and set the alias name to that model and using the same alias name in <code>Ext.data.store</code> and set the model to the alias name and it doesn't work, but with complete name of model it works. Why?</p>
  
  <pre><code>Ext.define('lancet.asset.system.combobox.models.PathwayModel', { extend: 'lancet.def.system.model.Model', alias: 'widget.pathwaymodel', fields: [ { name: 'Id', type: 'string' }, { name: 'Name', type: 'string' }, { name: 'group', type: 'string' } ] });
  
  
  Ext.create('Ext.data.Store', { model: 'lancet.asset.system.combobox.models.PathwayModel',//it's work autoLoad: true }
  
  
  Ext.create('Ext.data.Store',{ model:'PathwayModel',//it doesn't work autoLoad:true}
  </code></pre>