Thanks; some interesting points there. So, imagine the following scenario:
I am established on an ILS at 12nm, 4000' AGL to a runway where the missed approach procedure is to climb straight ahead to 3000' and for some reason the runway becomes temporarily blocked, and I am told to go around. So, I carry on down to 3000', level off and fly straight ahead, over the runway and continue until told otherwise. I had always assumed that I would not be told to go around if I was above the published missed approach altitude but from the comments above that seems not necessarily to be the case.