ResponseRenderer + initialConversation conflict

[gidehault]

Hi everyone,
I have a nlux implementation which is working nicely using "initialConversation" : so I'm able to open the chat interface with conversation history, which is great for our users

I'm now trying to implement a responseRenderer, to display action buttons after some chatbot replies. it's working... but buttons are displayed too for all conversation history items previously displayed. I'm using ColourfulResponseRenderer without changes, as available in this example https://docs.nlkit.com/nlux/examples/custom-response-renderers

how can I avoid that and render my custom response only for latest entry ?