http://trac.l2jserver.com/ticket/5391 fix

Index: java/com/l2jserver/gameserver/model/base/PlayerClass.java
===================================================================
--- java/com/l2jserver/gameserver/model/base/PlayerClass.java   (revision 4578)
+++ java/com/l2jserver/gameserver/model/base/PlayerClass.java   (working copy)
@@ -300,7 +300,7 @@
                    else
                        subclasses.removeAll(EnumSet.of(maleSoulbreaker));
                }
-               if (player.getTotalSubClasses() < 2)
+               if (player.getTotalSubClasses() <= 2)
                    subclasses.removeAll(EnumSet.of(inspector));
            }
        }