Kentucky Pink Stamper possible Regular Leaf

[remy]

I was out picking tomatoes for tomorrow's party and I realized I forgot about the plants I'm keeping and eye on. I have a regular leaf plant next to my potato leaf Kentucky Pink Stampers. It had a KPS name tag. I thought I made a mistake, but as the plant grew it has looked the exactly same as the potato leaf in growth height and habit, and then the green tomatoes look the same, u shaped beefsteaks with ribbing. I still thought it could be a coincidence, but tonight I picked a pink fruit off it, no pic (it is packed up for tomorrow.) I did not grow any pink regular leaf beefsteaks plus it exactly like KPS fruit which are different looking from everything else I'm growing this year.
I've never had this happen before, but I really think it is the same tomato but regular leaf.
Remy