The bug
In creative mode, right clicking with a single empty map will replace it in your hotbar with a map, while right-clicking with multiple empty maps (2-64) will not use up any empty maps and will create a map in a different location in your inventory.
Linked issues
relates to 9
MC-143805
Can't fill an empty map in creative mode
Resolved
MC-269593
Book and quill item is consumed when signing and closing it in creative
Open
MCPE-111151
Empty map is consumed in creative mode
Reopened
MC-124280
Using fire charges on TNT in creative mode consumes the fire charge
Resolved
MC-143821
Using empty map in creative mode can create additional map with ID 0
Resolved
4 more links
Attachments
Comments 18
8 more comments
Confirmed.