Is it possible to use `ember-infinity` with `ember-concurrency`?

Is it possible to use `ember-infinity` with `ember-concurrency` (I am learning `ember` and `javascript`)?

I have the following code in my route:

```javascript

import Route from '@ember/routing/route';
import { inject as service } from '@ember/service';
import { isBlank } from '@ember/utils';
import { task, timeout } from 'ember-concurrency';

const DEBOUNCE_MS = 250;

export default Route.extend(AuthenticatedRouteMixin, {
infinity: service(),

actions: {
doNothing() {
return false;
}
},
contactTask: task(function *(params) {
if (isBlank(params)) { return []; }
yield timeout(DEBOUNCE_MS);
let contact = yield this.infinity.model('contact', params);
return contact;
}).restartable(),
model(params) {
/*
* Copied from:
* Replacing your Route models with Ember Concurrency Tasks:
* https://medium.com/@AveryBloom/async-or-swim-replacing-your-route-models-with-ember-concurrency-tasks-5a230252893a
* and:
* Debounced Type-Ahead Search:
* http://ember-concurrency.com/docs/examples/autocomplete
*/
return {
contact: this.get('contactTask').perform(params)
};
},
queryParams: {
criteria: {
refreshModel: true
}
}
```

And this in my `hbs` file:
```html
{{#if model.contact.isRunning}}


Loading contact list...


{{else}}
{{#each model.contact.value as |contact|}}


{{#link-to "contact-detail" contact.id}}
{{contact.companyName}}
{{/link-to}}


{{#link-to "contact-detail" contact.id}}
{{contact.title}}
{{contact.firstName}}
{{contact.lastName}}
{{/link-to}}


{{#each contact.addresses as |address|}}
{{contact-address-in-a-table-cell address=address}}
{{/each}}


{{/each}}


{{infinity-loader
infinityModel=model.contact
loadingText='Loading records...'
loadedText='All records loaded.'}}


{{/if}}
```
It is nearly working, but the `infinity-loader` never finishes loading and every request to the server is duplicated.

Any thoughts would be appreciated. Thank you.