We are using urn:oid:1.2.840.113556.1.2.102 as Name for our MemberOf attribute. I am thinking this should be supported too. And also maybe add support for friendlyName aswell. Because we release attributes with urn:oid's as Name and MemberOf as friendlyName.
Here is an example of the SAML trace:
<saml2:Attribute FriendlyName="memberOf" Name="urn:oid:1.2.840.113556.1.2.102" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri" >
<saml2:AttributeValue xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xsd:string" >it-systemcommit</saml2:AttributeValue>