Zoomed out map not created when using a hotkey on the workbench

When you try to zoom out a map using the workbench by placing it in the middle surrounded with paper it only works if you click the resulting map and place it in your inventory manually, using a number (1-9) or shift+click to place it in the hotkey produces the same map but consumes the paper.

What I expected to happen was...:
When creating a zoomed out version of a map and shift-clicking in the workbench, it goes to my inventory zoomed out one level.

What actually happened was...:
Instead, I get the exact same map but 8 pieces of paper are consumed and the name it should have had is occupied.

Steps to Reproduce:
1. Open 2 empty maps in the same place, they should look exactly the same and be named Map #0 and Map #1 respectively.

2. Zoom out Map #0 by placing it on a workbench surrounded by paper, click and place it in your inventory manually, without using any key, it should be called Map #2 and be slightly zoomed out.

3. Now zoom out Map #1 but place it in your hotbar by using a hotkey (1-9) or shift-click instead, you'd expect Map #3 but it'll be named Map #1 instead and be exactly the same, without any zoom change, and the paper has been consumed.

4. Create a new map, it's name will be Map #4 even if Map #3 was not created (don't know if this last point is important)

I could attach some screens if the explanation is not clear.
Thanks.