How to disable autofill on ember form field

I have a form for updating the details of alumni in ember using RESTful api. Is it possible to prevent the form from auto filling the data I previously entered in the form corresponding to another record in the model?

I have these codes in my update route directory(I am using pod-structure):

controller.js

# app/alumnis/update/controller.js
import Controller from '@ember/controller';
import { get, set } from '@ember/object';

export default Controller.extend({
  firstName: null,

  actions: {
    updateAlumni(value) {
      let firstName = get(this, 'firstName');
      if(firstName) {
        firstName = firstName.charAt(0).toUpperCase() + firstName.slice(1).toLowerCase();
        this.get('store').findRecord('alumni', value).then(function(alumni) {
          alumni.set('firstName', firstName);
          alumni.save();
        });
      }
      this.transitionToRoute('alumnis.show', value)
    },
  },
});

route.js

# app/alumnis/update/route.js
import Route from '@ember/routing/route';
import { set } from '@ember/object';

export default Route.extend({
  model(params) {
    return this.store.findRecord('alumni', params.id);
  },

  setupController(controller, model) {
    set(controller, 'alumni', model);
  }
});

template.hbs

# app/alumnis/update/template.hbs
<form class="alumniForm" >
  <div class="form-group">
    <h3>First Name : </h3>
  </div>
  <button class="btn btn-primary" >Submit</button>
</form>

router.js

# app/router.js
import EmberRouter from '@ember/routing/router';
import config from './config/environment';

const Router = EmberRouter.extend({
  location: config.locationType,
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('alumnis', function() {
    this.route('show', {path: '/:id'});
    this.route('add', {path: '/add'});
    this.route('update', {path: '/:id/update'});
  });
});

export default Router;

On the first rendering of update route after every reloading, no form fields are filled automatically. But, once we enter data to the firstName input field, it is rendered to form field in update page of any other record in the model alumni.