Fix for SF Bug #1725817 Error in authorization to submit when you add collection.

git-svn-id: http://scm.dspace.org/svn/repo/branches/dspace-1_5_x@3338 9c30dcfa-912a-0410-8fc2-9e0234be79fd

dspace-api/src/main/java/org/dspace/eperson/Group.java

@@ -304,7 +304,8 @@ public class Group extends DSpaceObject
         loadData(); // make sure Group has data loaded
 
         // don't add if it's already a member
-        if (isMember(g))
+        // and don't add itself
+        if (isMember(g) || getID()==g.getID())
         {
             return;
         }