Kerning Cash or it is not possible to start from scratch!

How come Glyphsapp remembers the names and values of Kerning Groups; after clearing all kerning tables; further to trying to use Mekkablue & Mark-Fromberg’s scripts for deleting Kerning Groups.
I had started the whole process from scratch and the app still remembers pairs values and group names.

Where, what? Where do you see kerning after you deleted it? And how exactly do you delete kerning?

I’ll send a video which demonstrate this.