Shift-clicking a crafted map.

What I expected to happen was...:
When I put a map in the crafting table surrounded by paper I would expect it to give me a larger map

What actually happened was...:
When holding shift to take the crafted map out quickly, it just gives me back the old small map and sometimes re-names the map (ex. Map #1 would become Map #4)

Steps to Reproduce:
1. I went into creative mode
2. Got a crafting table, paper, and a blank map
3. Right clicked the blank map to make it a real map
4. Placed the crafting table down and clicked on it
5. Put the map into the crafting table surrounded by paper
6. Shift-Clicked the resulting map
7. The resulting map turned out to be a copy of the first map with the same zoom amount
(I've tried this procedure multiple times before posting this to make sure)