Gameobject save issue

**Describe the bug**
When I try to edit and save a gameobject this error message is keeps popping up:

"The given key 'World.gameobject_template_addon' was not present in the dictionary."

I've tried to add a new file to the definitions:
"...\DbDefinitions\azeroth\gameobject_template_addon_ac.json"

It doesn't work.

Version: build 2961

Expected to save the gameobject modifications to the database.

I'm still trying to solve this issue, if I managed to fix it I will update this thread.

Reproduce the save failure in build 2961 and inspect the missing World.gameobject_template_addon key reported by the error. Check the definitions directory, including DbDefinitions/azeroth/gameobject_template_addon_ac.json, and compare it with the gameobject save path. Done means gameobject edits save to the database without the dictionary error.

Written by the indexing model from the issue text.