<p dir="auto">To reproduce the issue: here <a href="http://jsfiddle.net/Q9K8L/" rel="nofollow">http://jsfiddle.net/Q9K8L/</a> click on an option twice before clicking on a submit button. Radio button option is not sent with a submit.<br>
I suspect <code class="notranslate">data-toggle="buttons"</code> data attribute causes this issue.</p>
<p dir="auto">Tested on Chrome Version 31.0.1650.57 m and FireFox 24.0</p>
<p dir="auto">The active class stays on the button, but the checked property is removed from the radio input.</p>
<p dir="auto"><a href="http://jsfiddle.net/meleyal/dafPH/" rel="nofollow">http://jsfiddle.net/meleyal/dafPH/</a></p>