Ember.js clear controller on transitionToRoute call - ember.js

Question

I have a route that displays a list of parcels, and an Ember.Select that allows the user to select which state's parcels to show.
Model
App.Parcel = DS.Model.extend({
addresses: DS.attr('array')
});
Route
App.ParcelsRoute = Ember.Route.extend({
state: null,
renderTemplate: function () {
this.render({ outlet: 'parcels' });
},
model: function (params) {
state = params.state;
App.ParcelAdapter.state = state;
App.ImageAdapter.state = state;
return Ember.RSVP.hash({
props: this.store.findAll('parcel'),
states: this.store.findAll('state'),
});
},
setupController: function (controller, model) {
controller.set('states', model.states);
controller.set('props', model.props);
controller.set('selectedState', state);
}
});
Controller
App.ParcelsController = Ember.ObjectController.extend({
selectedState: null,
props: null,
states: null,
first: true,
modelReloadNeeded: function () {
if (this.get('selectedState') != undefined && !this.get('first')) {
this.transitionToRoute('/parcels/' + this.get('selectedState'));
}else{
this.set('first', false);
}
}.observes('selectedState')
});
Handlebars
<script type="text/x-handlebars" id="parcels">
{{view Ember.Select content=states optionValuePath="content.id" optionLabelPath="content.id" value=selectedState}}
<input class="search" placeholder="Search"/>
<ul class="list nav">
{{#each props}}
<li>{{#link-to 'parcel' this}}<h3 class="name">{{addresses.0.street_address}}</h3>{{/link-to}}</li>
{{/each}}
</ul>
</script>
When the select transitions to the new route, both the old routes data and new routes are in the model, but if I reload the page, only the current routes data is loaded. Is there a way to clear the DS.RecordArray for props in the controller without a location.reload() call?