Non-context switching {{#with}} switches context inside of an {{#each}} loop

[markprzepiora]

With the following controllers,

App.FoosController = Ember.ArrayController.extend({
  itemController: 'foo'
});

App.FooController = Ember.Controller.extend();

and the following foos template,

     <p>Outside of the loop, "this" is {{this}}</p>
     {{#each this as |fooController|}}
       <p>Inside of the loop, "this" is still {{this}}</p>
       {{#with fooController.model as |foo|}}
         <p>But inside of the "with" within the loop, "this" is {{this}}</p>
       {{/with}}
     {{/each}}

and the application template being just,

    {{render "foos" items}}

Since I'm using the non-context-switching versions of all the helpers, I expect every {{this}} to be the same (namely, FoosController). But instead the first two {{this}} statements print out FoosController, but the third prints out FooController.

Is this a bug or am I completely misunderstanding something?

JSBin here: http://jsbin.com/fuqota/5/edit?html,js,output

[rwjblue]

I believe this is related to #10401.

[rwjblue]

This was fixed by #10489.