Rephrased question causing issues 
Labels: name: area: agent, name: auto:bug, name: auto:improvement

### System Info

I have a use case where I ask an AI agent to check if an article adheres to certain guidelines in documents. However, the recent changes in the BaseConversationalRetrievalChain _call function are causing issues. The process of requesting information from OpenAI can be divided into two steps.

In Step 1, the request, chat history, and system prompt are sent, and the question is rephrased. This step aims to prevent the retrieval of irrelevant documents and ask a more accurate question.

In Step 2, the rephrased question, along with the rephrased chat history and documents, is sent to OpenAI to receive an answer. The problem arises after the upgrade, as the library now sends the rephrased question instead of the original question.

In the process of rephrasing the question, the article is removed from the body of the question. As a result, the AI bot is no longer able to respond effectively.

A possible fix, is sending original question in Step2, it would be nice to be able to decide on it using function parameter.
 

### Who can help?

_No response_

### Information

- [ ] The official example notebooks/scripts
- [ ] My own modified scripts

### Related Components

- [X] LLMs/Chat Models
- [ ] Embedding Models
- [ ] Prompts / Prompt Templates / Prompt Selectors
- [ ] Output Parsers
- [ ] Document Loaders
- [ ] Vector Stores / Retrievers
- [ ] Memory
- [ ] Agents / Agent Executors
- [ ] Tools / Toolkits
- [ ] Chains
- [ ] Callbacks/Tracing
- [ ] Async

### Reproduction

Document
Doc: Golden guidelines for article

Golden guidelines for articles are as following:

1. Keep the article content as short possible
2. Don’t add new content. It should be a refinement and improvement of what is already there to maintain accuracy
3. Use a clear and concise writing style: Keep sentences short and to the point.
4. Organise content using headings and subheadings: Divide the article into sections with relevant headings, making it easy for readers to find the information they need.
5. Make sure page titles and section headings are action-focused and not in question format
6. Use bullet points and numbered lists to show information in a clear and organised structure
7. Highlight important information using bold or italic text: Emphasise key points or specific instructions by using bold or italic formatting.


------

ask this question:

Review the following document and check if it is following golden guidelines, here is my doc 
---------
 What is an eTicket?
Instead of a paper ticket, your ticket will be emailed to you as a PDF attachment. If you miss the email, it will also be available for download from the trip itinerary page of your TravelPerk account.
This saves you time at the train station as you no longer have to print a ticket from a ticket machine.
How do I get an eTicket?
When searching for a train in the UK:
Select your preferred time and click on See tickets.
Scroll down to Ticket delivery method.
Select Get an eTicket.
Click on Add to trip.
You will receive the PDF ticket with your TravelPerk confirmation email. You will also be able to download it from your account under Trips -> select a specific trip.
How do I use my eTicket?
It’s really easy! Simply open the PDF ticket on your phone and scan the barcode when you travel.
If there is no scanner at the station, just show the eTicket to a staff member at the barrier.




rephrased question:
Review provided article

final response: As an AI, I can't review the article titled "What is an eTicket?" because you haven't provided the content of the article. Please provide the article content 

### Expected behavior

expected answer would be sth like this:
The article is well-structured and follows the Golden guidelines for articles. Here are some points to note:

1. Relevance: The article is very relevant to its intended audience, which seems to be those using eTickets for train travel in the UK. 

2. Clarity: The article is clear and easy to understand. The language is simple and the sentences are concise.

3. Depth: The article provides a good level of detail on its subject. It answers many potential questions a reader might have about eTickets and provides step-by-step instructions on how to get and use them.

4. Accuracy: The information in the article appears to be accurate, although without further context or sources, it's hard to verify.