no longer warns against a lazy spec implementation if AnonymousUser is set

spec/spec_helper.rb

@@ -86,7 +86,9 @@ module OpenProject::RSpecLazinessWarn
   def self.warn_if_user_current_set(example)
     # Using the hacky way of getting current_user to avoid under the hood creation of AnonymousUser
     # which might break other tests and at least leaves this user in the db after the test is run.
-    unless User.instance_variable_get(:@current_user).nil?
+    current_user = User.instance_variable_get(:@current_user)
+
+    unless current_user.nil? || current_user.is_a?(AnonymousUser)
 
       # we only want an abbreviated_stacktrace because the logfiles
       # might otherwise not be capable to show all the warnings.