Green item frame map markers are not removed in all cases

The bug

The green icon / marker displayed on a map when a copy of it is placed in an item frame is not removed in all situations.

Affected situations

Basically everything which does not call EntityItemFrame.removeItem(ItemStack) (MCP name)

• When destroyed by explosion

• When /killed

• When map was removed by updating NBT

• When ItemDropChance value prevents dropping

• When gamerule doEntityDrops is false and item frame breaks, e.g. by removing supporting block

How to reproduce

1. Switch to Creative mode for simplicity

2. Create a map

3. Place an item frame and place the map in it

4. Use one of the affected situations described above
   → ❌ The green icon remains even though the map is not inside the item frame anymore