polymerfire/firebase-auth email verification not working

Question

I am using firebase-auth (of polymerfire). Here is my element:

<firebase-auth id="auth" user="{{user}}"></firebase-auth>

I can observe changes on user when I login, so that part works fine. My problem is that for some reason I can't observe changes to user when I verify my email. Here are my observers:

  properties: {
    user: {
      observer: '_obsUser'
    }
  },
  observers: [
    '_obsUser(user.*)'
  ],

I added the second observer just to make sure I observed all changes on the user. Again, no observer is triggered when I verify my email address. I even added a button to check the emailVerified property of user after I verified and it is still false.

Here is my check button I added:

<paper-button on-tap="_check">Check Verify</paper-button>

and the check function:

  _check: function(){
    console.log(this.user.emailVerified);
  },

Even though the user has verified, _check still returns false.

If I reload my polymer app, the emailVerified prop will be true. But for some reason user that is bound is not updating properly without a hard reload.