PutForExternalRead won't work after a clear(), when both in same tx

   public void testPutForExternalReadAfterClear() throws Exception {
      cache.put(1, "v1");
      tm().begin();
      try {
         cache.getAdvancedCache().clear();
         cache.putForExternalRead(1, "v1");
         assertEquals("v1", cache.get(1));
      } finally {
         tm().commit();
      }
   }