Merge branch 'cache-ref-names-in-discussion-endpoint' into 'master'

Allow Gitaly ref name caching for issue discussions

See merge request gitlab-org/gitlab!22244

app/controllers/projects/issues_controller.rb

@@ -46,6 +46,8 @@ class Projects::IssuesController < Projects::ApplicationController
     push_frontend_feature_flag(:vue_issuable_sidebar, project.group)
   end
 
+  around_action :allow_gitaly_ref_name_caching, only: [:discussions]
+
   respond_to :html
 
   alias_method :designs, :show

changelogs/unreleased/cache-ref-names-in-discussion-endpoint.yml

+---
+title: Reduce Gitaly calls needed for issue discussions
+merge_request:
+author:
+type: performance