-retrieved from inside of memcached_fetch_exectue(). Cloning a memcached_st
-will copy the pointer to the clone.
+retrieved from inside of memcached_fetch_execute(). Cloning a memcached_st
+
+will copy the pointer to the clone. This was deprecated in 0.14 in favor
+of memcached_callback_set(3). This will be removed in 0.15.