Description:
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When you construct a SoapClient it immediatly fetches the WSDL, before you have the chance to set cookies. Our setup requires some cookie to be sent when fetching the WSDL which is currently impossible.

It should be possible to give cookies to the SoapClient constructor which should be sent along with the request for the WSDL.

Test script:
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$soap = new SoapClient('http://webservice/wsdl', array('username' => 'x', 'password' => 'y'));
$soap->__setCookie('extra_thing', 'z');