In Pocket Edition maps can only be zoomed out with anvils. This is because the PC crafting system is not available in it. However, using anvils to zoom out a map increments the rework penalty, which renders renaming it after zooming out an unreasonably costly operation.
Steps to reproduce:
- Create a map
- Zoom it out to the maximum (4 times)
- Rename it
Renaming only requires 1 xp level.
What actually happens:
It requires 16 xp levels, i.e. 15 rework penalty + 1 renaming cost.