Updating to 1.11.1 - View not accessible inside an helper

We are in the process of updating our ember app from 1.10 to 1.11 and we are running into an issue. We have a simple sort-toggle helper that is not working anymore.

Code of the helper:

Ember.HTMLBars._registerHelper('sort-toggle', function(params, hash, options, env) {
    var target = this.get('controller.sortTarget') || hash.target,
        view = env.data.view,
        field = params[0];

    hash = {};
    hash[target] = view.getStream(this.get('controller').createToggleString(field));

    options = {
        hash: hash,
        data: options.data
    };

    return Ember.Handlebars.helpers['query-params'].helperFunction.call(this, [], hash, options, env);
});

It appears that since we updated to ember-cli 0.2.3 (ember 1.11.1), this is now undefined and so we cannot access the view or the controller.

We did not see anything in the changelog related to this, what changed ? and how should we migrate this ?