New forum?

Yes, there will be little or no problem. The little problems are that you stand to get harassed by the transit people and that you are risking BA cancelling your reservation. Though I don't know how risky the second is. I had it happen to me, but it was after my second consecutive flight. In other words, you will go LHR-DXB-LHR, while I went LHR-DXB-LHR-DXB-LHR. On the last leg back to London, all things were screwed up and I almost had an involuntary downgrade. In retrospect, I wish I had been because there was the family of some UAE hotel big wig on board with a lot of kids, screaming, yelling, and throwing food.