mdInputContainer: `ng-messages` errors are not shown alongside `md-checkbox`

[alexilyaev]

Related to: #6767

Behavior:

• What is the issue?
  Errors in ng-messages are not shown when they are alongside md-checkbox
• What is the expected behavior?
  Should work just like with all other form elements.

CodePen to reproduce the issue:
http://codepen.io/alexilyaev/pen/YqJYgb?editors=1000

Angular Versions:

• Angular Version: 1.5.0
• Angular Material Version: 1.0.7

Additional Information:

• Browser Type: Chrome
• Browser Version: 50.0.2661.86 (64-bit)
• OS: Mac OS X 10.11.4

[brianfeister]

+1

[dougpix]

+1

[danidewitt]

+1

[destegabry]

+1

[crisbeto]

The message is actually still a part of the DOM, but it's not being animated in. This is a known issue. Take a look at #6399.

[alexilyaev]

@crisbeto It's not quite the same thing, in my case the message doesn't show up to begin with, and there's no such class name regarding the animation.

[sdesmond]

The Pen originally provided has a little bug. It's not including the ngMessages module, so even without the md-input-container, the message won't show. Here's an updated Pen:

http://codepen.io/anon/pen/qZGGgj?editors=1000

If you comment out md-input-container, the message shows as expected. If you leave it in, the message never shows.

[alexilyaev]

@sdesmond Thanks for catching that, I've updated my Pen.
So md-input-container still causes an issue.