Retrieve accidentally overwritten data due to bug

I edited a recent prompt I just sent yesterday but it overwrote and truncated nearly the entire conversation all the way back to early October. My 2-month worth of data is lost. I’m contacting support but no help so far. I’m so gutted I really didn’t see this coming. It’s obviously a bug, I know editting a prompt will change the conversation from that prompt onwards but the stuff before that prompt really should not disappear like this. I really hope it can be resolved soon, I’m already losing sleep over this.