How SharePoint 2010 handles multi-valued claims?

Recently ran into an issue with how to handle multi-values coming in via custom claims. For e.g.if Idp (ADFS, SiteMinder, RSA FIM) uses AD LDS or AD, then in most environments, we would want to reuse the AD security groups for authorizationwithin SharePoint. SharePoint 2010 will handle multi-valued claims depending upon how it gets multi-value…