Maps doesn't need to be explored in Survival mode

Put the summary of the bug you're having here

*What I expected to happen was...:*I expected minecraft to make a new map to explore.
Describe what you thought should happen here

*What actually happened was...:*The map got filled like in Creative mode.
Describe what happened here

Steps to Reproduce:
1. Create a compass with 4 iron ingots and one redstone dust.
2. Create a map with 1 compass and 8 papers.
3. Open the blank map.