Map when placed in item frame thinks that it's a person

Map when placed in item frame thinks that it's a person

I thought that it would just act as a normal map in an item frame

What happened was it registered as another person. I was in a mineshaft so
I went to the surface. I was on singleplayer on a tiny island in the middle of a huge ocean. I did not see anybody. Then I thought it mite be herobrine because iv'e heard stories of that happening. I finally figured out that it was
the map itself in the item frame. Fix it please.