I can see something like if someome raises by more than say 20% and $20,000 that they might be able to do make a corrected bid, but not a complete withdrawal. Perhaps you could have 5 minutes to do that as long as there is more than an hour remaining. So at worst there is a short period in which a higher bid would show up and then be reduced.
And then perhaps in the last hour, limit raises to 20% or $20,000, so there is no need for correction. This would be a minor annoyance to someone who want to raise the price quicker.