How to make Mega Evolutions disappear?

Hello there! I would like to know how to make Pokemon return to there original form at the end of the battle, because in my case the Pokemon stays in its mega form after the battle. I have not changed something on the scripts. I do not know much about scripting, so I hope that someone can help me.

Have a nice day

Known issue with a fix from Maruno himself.
Just got to edit the scripts.

Thank you! The new script is working.