Not that I can tell, but my furniture is mostly dark (blacks, browns, blues) and so are my clothes!
I wonder if I got a fluke bag (especially if you didn't notice any color coming off with conditioner! It was really noticable on my white cloth last night).
Maybe you did get a fluke. It seems very odd that you would have such a substantial amount of color coming off. I used a white cloth and piled on the conditioner and had absolutely no color show on the cloth! In fact, this bag seems built like a tank! I was worried about scratching (I'm pretty rough on my bags), but even that is minimal and buffs right out with the conditioner.
Does yours seem darker than others you've seen? Maybe the dye was more saturated or something? I can try to post a photo of mine later to compare if you think it would be helpful.