If the ridge is there it's not going to hurt anything if you're not touching the bottom end of the motor. If you're just going to bolt it back together and drive, you're fine.

The ridge is a problem if you're changing pistons and don't want to bore out the cylinder, then the rings may clip the ridge and that can break them. I've never heard anyone break rings when they did a hone'n're-ring and reused the stock pistons/rods but in theory it's possible. I did the budget refresh on my 440 with a ridge and had no problems.