Computed Oddity

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'input',
  type: 'text',

  attributeBindings: [
    'type',
    'value'
  ],
  
  valueComputedProp: Ember.computed('value', function() {
    return this.get('value') + '!';
  }),
  
  didReceiveAttrs() {
    this._super(...arguments);
		
    // with this line left in the log below is "undefined!"
    // comment this line out and the log below is "hi!"
    this.get('valueComputedProp');
    
    this.set('value', this.get('my-value'));
    
    console.log('***** valueComputedProp', this.get('valueComputedProp'));
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
	{{my-component my-value='hi'}}
<br>
<br>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}