What is happening:
I can sell/buy items even the merchant is far away from me!
What should be happening:
Player won't be able to walk during transaction; or shop window auto-disposed after player out of effective range.
(only happen when in the same map, swapping map will dispose the windows)
Steps to reproduce the issue:
Open shop window, drag it to the edge of the window. When you needs it, just drag it out.
Game client version: