Merge pull request #701 from code0-tech/fix-user-policy

Fix null check in user policy

Author: raphael-goetz

app/policies/user_policy.rb

@@ -2,7 +2,7 @@
 
 class UserPolicy < BasePolicy
   condition(:user_is_self) { subject.id == user&.id }
-  condition(:user_is_admin) { user.admin? }
+  condition(:user_is_admin) { user&.admin? || false }
 
   rule { ~anonymous }.enable :read_user