Disable pruning of what has been processed before

[aristoHero]

Hello,
I pruned my repository before with BFG and now I have to do it again.
When I run the command I get

This repo has been processed by The BFG before! Will prune repo before proceeding - to avoid unnecessary cleaning work on unused objects...
Completed prune of old objects - will now proceed with the main job!

I dont want to do the pre-pruning before running the main job as I dont remember what files I have deleted and I remember that some files that were deleted were readded.

Is there a way of doing this?
Or does the new pruning deleted files list contain the files that were deleted before?