Size after a suspended transaction is resumed is incorrectly calculated

   public void testSizeAfterClearInBranchedTransaction() throws Exception {
      cache.put(1, "v1");
      tm().begin();
      try {
         assertEquals("v1", cache.get(1));
         Transaction suspended = tm().suspend();
         tm().begin();
         try {
            cache.clear();
         } finally {
            tm().commit();
            tm().resume(suspended);

            assertEquals(1, cache.size()); // assertion fails
            assertEquals("v1", cache.get(1));
         }
      } finally {
         tm().commit();
      }
   }