[md-radio] 1.0.0-pre.9 breaks radio behavior in radio groups

[christophe-g]

Thanks a lot for the new release - it starts to look really good.

1.0.0-pre.9 seems to break (SingleSelectionController) md-radio as illustrated below:

• radio are not selected on click
• navigation through radio with keyboard arrows do not select the active radio

non working example (1.0.0-pre.9)

working example (1.0.0-pre.8)
replace pre.9 by pre.8 in playground

link to playground

[asyncLiz]

rip 🙃

[christophe-g]

rip upside_down_face

Oh yeah sorry, two animations in the same issue is a bit too much.

[austinw-fineart]

To be more technical, the radios still function logic-wise. It's just that the styling relied on the existence of the checked attribute that is no longer reflected by the corresponding property.

[asyncLiz]

Yup! I've got a PR coming to fix the styling soon, just gotta investigate a client failure