[Does Ufile keep backups of submitted tax returns]

Hi,

I was trying different RRSP scenarios with my already submitted 2022 tax report .  I exited Ufile without saving but when I logged back in it had saved the changes I made in the scenario.

I would like to have my original submitted values.  Is there a way to roll back changes in Ufile?  Is there a prior-dated backup available?

Thanks,

Mike