CHAT_MEMORY_RETRIEVE_SIZE_KEY is not effective.

Who can explain the function of the parameter CHAT_MEMORY_RETRIEVE_SIZE_KEY? Is it used to control the number of historical conversations that the AI can see? If so, it is not working.

**.advisors(memoryAdvisor -> memoryAdvisor
                        .param(CHAT_MEMORY_CONVERSATION_ID_KEY, chatId)
                        .param(CHAT_MEMORY_RETRIEVE_SIZE_KEY, 3))**