[bug] Armor slot item will disappear if player reopen editor multiple times

[hkkongou]

Some of my players have test that when they using armor stand editor,they add something to the armor slot of the armor stand, if they right click to open the editor too many times, the armor stand will got reset and things will be disappear.

players provided video to show how this happen.
https://www.youtube.com/watch?v=JgxC3977OUI

Plugin version: 1.16-25
server version: purpur 1.16.5 # 1131

[Uboaaaaa]

This is also reproduced on my side.
Seems to happen when the player clicks too fast, making another attempt to open the slot editor when the equipment has not yet returned to the stand.
plugin version: 1.16-25
server version: Yatopia-1.16.5-117