[SAML] server error when SOAP SLO request is sent by IDP, and SOAP access is not possible on SP
We have a bug when IDP send a SLO request trough SOAP, and SP is not reacheable by SOAP:
{panel:title=error.log} Can't call method "ID" on an undefined value at /usr/share/perl5/Lemonldap/NG/Portal/_SAML.pm line 2453. {panel}
We should catch this error, and add the possibility to choose the SLO method from the IDP side.