Preload tags when loading commit statuses

app/models/ci/legacy_stage.rb

@@ -5,6 +5,7 @@ module Ci
   # We should migrate this object to actual database record in the future
   class LegacyStage
     include StaticModel
+    include Presentable
 
     attr_reader :pipeline, :name
 

app/presenters/ci/legacy_stage_presenter.rb

+# frozen_string_literal: true
+
+module Ci
+  class LegacyStagePresenter < Gitlab::View::Presenter::Delegated
+    presents :legacy_stage
+
+    def preloaded_statuses
+      legacy_stage.statuses.tap do |statuses|
+        # rubocop: disable CodeReuse/ActiveRecord
+        ActiveRecord::Associations::Preloader.new.preload(preloadable_statuses(statuses), :tags)
+        # rubocop: enable CodeReuse/ActiveRecord
+      end
+    end
+
+    private
+
+    def preloadable_statuses(statuses)
+      statuses.reject do |status|
+        status.instance_of?(::GenericCommitStatus) || status.instance_of?(::Ci::Bridge)
+      end
+    end
+  end
+end

app/views/projects/stage/_stage.html.haml

+- statuses = stage.present(current_user: current_user).preloaded_statuses
+
 %tr
   %th{ colspan: 10 }
     %strong
@@ -6,8 +8,8 @@
         = ci_icon_for_status(stage.status)
        
       = stage.name.titleize
-= render stage.statuses.latest_ordered, stage: false, ref: false, pipeline_link: false, allow_retry: true
-= render stage.statuses.retried_ordered, stage: false, ref: false, pipeline_link: false, retried: true
+= render statuses.latest_ordered, stage: false, ref: false, pipeline_link: false, allow_retry: true
+= render statuses.retried_ordered, stage: false, ref: false, pipeline_link: false, retried: true
 %tr
   %td{ colspan: 10 }