Originally posted by BrianR A downside is any change you make after reverting erases all the steps that had come after.
Yeah, a vague analogy to backups in IT is it's a differential rather than incremental restore.
So, if it's a concern, we just get smart in our workflow about the Snapshot or Virtual Copies you mentioned.
After the cropping, horizon correction, white balance, rough exposure, we can create one virtual copy for each treatment we're exploring … black and white, high saturation and contrast, vintage film, etc, and our experiments on one don't affect the other, but they all have the benefit of the settings we did in that common starting point.