Include :author, :project, and :target in Event.with_associations

Signed-off-by: Rémy Coutable <remy@rymai.me>

app/models/event.rb

@@ -39,7 +39,7 @@ class Event < ActiveRecord::Base
     where(project_id: projects).recent
   end
-  scope :with_associations, -> { includes(project: :namespace) }
+  scope :with_associations, -> { includes(:author, :project, :target, project: :namespace) }
   scope :for_milestone_id, ->(milestone_id) { where(target_type: "Milestone", target_id: milestone_id) }
   scope :issues, -> { where(target_type: 'Issue') }
   scope :merge_requests, -> { where(target_type: 'MergeRequest') }

changelogs/unreleased/27395-reduce-group-activity-sql-queries-2.yml

+---
+title: Include :author, :project, and :target in Event.with_associations
+merge_request:
+author: