didReceiveAuthenticationChallenge method crashes in the SDK 3.1.2
<p>I have code running good in 3.0 and 3.1 but when I use the SDK 3.1.2 is crash at the didReceiveAuthenticationChallenge method says a log "obj_msgSend" . It happens always when using didReceiveAuthenticationChallenge .</p>

<p>Also I have all the other methods in that class</p>

<p>didreceive response</p>

<p>connectionfinishloading</p>

<p>didfailwitherror etc </p>

<p>Please help me out </p>
