Rich type coercion breaks with bi-directional bindings (version 3.11.12)

[imaustink]

The following example should render Austin twice, once in and again in the call to stache near the bottom. However, only the first instance is rendered. Note if you change the value passed into the template to be an instance of User rather than a POJO, it works as expected.

const User = can.DefineMap.extend({
  name: {
    type: 'string',
    value: 'Austin'
  }
})

can.Component.extend({
  tag: 'my-component',
  view: can.stache(`<p>{{user.name}}</p>`),
  ViewModel: can.DefineMap.extend({
    user: {
      Type: User
    }
  })
})

const template = can.stache(`
  <my-component user:bind="user"></my-component>
  <p>{{user.name}}</p>
`)
const frag = template(new can.DefineMap({
  user: {} // change this to `new User()` and it works
}))

document.body.appendChild(frag)

Working codepen for convenience:
https://codepen.io/anon/pen/eLMvBZ?editors=1111