CXF-4813 a change to fix an issue with random policy references in AssersionInfoMap that was first seen after r1445377.  Patch provided by dkulp

git-svn-id: https://svn.apache.org/repos/asf/cxf/branches/2.7.x-fixes@1446442 13f79535-47bb-0310-9956-ffa450edef68