md-datepicker ignoring required attribute on pristine input

[astynax777]

Codepen is here: http://codepen.io/astynax777/pen/ONqQOY

You'll notice that if you submit the form without first selecting and clearing a date, the validation does not fire on the md-datepicker.

I would like to know a workaround for this in the meantime.

AngularJS stack: 1.5.5
Material: 1.1.0-rc4

[astynax777]

Just saw this in the source:
// TODO(jelbourn): forward more attributes to the internal input (required, autofocus, etc.)
Looks like it hasn't been implemented yet but will be when @jelbourn gets around to it.

I wonder though, was it ever working? I tested it in 1.0.7 and saw it didn't work there. The documentation states it supports required and ng-required:

mdDatepicker API Documentation

<md-datepicker> is a component used to select a single date. For information on how to configure internationalization for the date picker, see $mdDateLocaleProvider.

This component supports ngMessages. Supported attributes are:

• required: whether a required date is not set.
• mindate: whether the selected date is before the minimum allowed date.
• maxdate: whether the selected date is after the maximum allowed date.

[dohomi]

I just have seen this with md-select as well.

http://codepen.io/anon/pen/jqoEOG

Would be great to see a fix for this. On regular input it works as expected.