Description
According to the discussion on the mailing list [1], the logout flow at the IDP will be changed to ask for logout confirmation if the wa parameter is set to wsignout1.0 and perform the actual logout when the wa parameter is set to wsignoutcleanup1.0.
[1] http://cxf.547215.n5.nabble.com/Fediz-Single-Logout-Flow-at-IDP-td5754998.html