publishable model in controller is leaking

[yedpodtrzitko]

steps to reproduce:

• add console.log into create-article.js to observe problem (line ~420)

            if (this.article.id) {
                                console.log('this article id set to ' + this.article.id); // < this is the new line
                values['id'] = this.article.id;
            }

• open form with any existing article (note its id, eg. 1)
• open form with any existing gallery (note its id, eg. 2)

  current behaviour

• controller's variables are polluted by original publishable, ouput log during autosave shows:

>>> this article id set to 1
>>> this article id set to 2

expected behaviour

• publishable which you can see in form is updated, that means this output:

>>> this article id set to 2