Please remove the cleared conversation history

"Please remove the cleared conversation history, because in this way we lose our work. It is difficult for us to understand the AI again, which is not what we want."

The issue body is the only provided starting point and does not name a file, test, or entry point. First clarify which cleared conversation history should be retained and how that behavior should work; the work is complete when the expected history-preservation behavior is defined and verified.

Written by the indexing model from the issue text.