"Upgraded" from Teams to Entry, how do I downgrade?

[0xDEADC0DE]

See my post here:

Nondesctructive downgrade from Entry to community Teams

Funny that nobody from Mattermost answers such a simple question. Here somebody said he’s a “Mattermost Moderator” and it’s possible so switch from Entry to Team in v11, but the question how you do that isn’t answered.

It’s a bad joke from MM.