https://www.drupal.org/node/2893588
Removing a site or platform could remove all of /var/aegir [#2893588] | Drupal.org
Dec 11, 2017 - 1: create a git repository in /var/aegir/ 2: verify a platform so it shows /var/aegir/ as your repo 3: delete the platform Everything in /var/aegir/ gets...