SMACK-459 actually add the defaultIdentity to the result of getIdentities()

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@13796 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smackx/ServiceDiscoveryManager.java

@@ -187,7 +187,10 @@ public class ServiceDiscoveryManager {
      * @return
      */
     public Set<DiscoverInfo.Identity> getIdentities() {
-        return Collections.unmodifiableSet(identities);
+        Set<Identity> res = new HashSet<Identity>(identities);
+        // Add the default identity that must exist
+        res.add(defaultIdentity);
+        return res;
     }
 
     /**