map + item frame + inventory = reaction

What I expected to happen was...:
actually it didn't happen that nothing, this does not affect the game, but was convieniente report it

What actually happened was...:
you see, something happens when I put the map in item frame, at the beginning does not pass anything, but when I go into the inventory, I put the cursor on an object, the map shines

Steps to Reproduce:
1. Put a map in the frame item
2. You walk into the inventory
3. you put the cursor on any object
4. The map shines