Seems a lot of consensus here.
Jump course designers know that this is a real part of horses’ behaviour, which is why, even at big Spruce Meadows type shows, they frequently put a jump just past the gate, or angling towards it, to distract the horse. And it works if the rider is even a little bit off guard no matter how well schooled or seasoned the horse is.
So you are not alone, and it is common.