Accidentally combined output files without requesting history outputs, can I reverse this?

[JamesPowell]

I just finished running a large job which took many hours to complete, and I had to do a restart job as well since it froze near the end.
When I combined the two odb files (original and restart), I forgot to request to keep the history outputs which are crucial for my results. Is there any way to reverse this and get the history outputs back again, or did I lose them and have to restart the job again from scratch?

Thank you