IE9 Radio button bug - bound model value becomes 'stuck'

[zdam]

I am seeing a problem in IE9, not sure what it is exactly, but here is the scenario:

Open this fiddle in IE9, and then cycle through the radio buttons more than once.

• you should find that you cannot cycle more than once, underlying bound model value becomes 'stuck'.

Now remove the empty div, and you should find that radio button cycling then works.

http://jsfiddle.net/brDnt/

(I don't know that the empty div has anything to do with the problem, but it is the easiest way to show the behaviour change)

[mhevery]

This is a heisen-bug, it fails to reproduce under debugger. So I placed console.log messages in angular.js and here is what I found.

1. angularjs correctly updates the DOM
2. IE shows the DOM as updated, but is simply not rendering it.
3. causing a blur event (taking the mouse outside the iframe) will cause IE to rerender (hence the heisen-bug)

At this point I am not sure what else we can do, since we are doing everything right, IE just fails to render.

[mhevery]

Closing the issue, since I have no idea how to fix IE's idiosyncrasies