Properly fix an introduced N+1 SQL issue loading commit authors

app/controllers/projects/refs_controller.rb

@@ -70,6 +70,9 @@ class Projects::RefsController < Projects::ApplicationController
   end
 
   def prerender_commit_full_titles!(commits)
+    # Preload commit authors as they are used in rendering
+    commits.each(&:lazy_author)
+
     renderer = Banzai::ObjectRenderer.new(user: current_user, default_project: @project)
     renderer.render(commits, :full_title)
   end

app/models/commit.rb

@@ -39,12 +39,7 @@ class Commit
   def banzai_render_context(field)
     pipeline = field == :description ? :commit_description : :single_line
     context = { pipeline: pipeline, project: self.project }
-
-    # The author is only needed when rendering the description
-    if field == :description
-      author = self.author
-      context[:author] = author if author
-    end
+    context[:author] = self.author if self.author
 
     context
   end