I have just added some additional information to the entries on the Yolochka and Kopir. I think that the Yolochka was made by Belomo and not KMZ, so perhaps this needs changing. I have also added the Kopir film cutter and a couple of F-21 Nailon disguises.
My cutter was in the Kopir kit. Both the S-112 and Kopir were manufactured by the same factory, BelOMO, and both cameras take 21 mm wide film. It's very likely that the same film cutter was supplied in both kits.