#428

backend/app/controllers/tag_versions_controller.rb

@@ -36,6 +36,11 @@ class TagVersionsController < ApplicationController
 
   def serialise_versions rows, language_code
     rows = rows.to_a
+    tag_ids = rows.map(&:tag_id).uniq
+    current_names_by_tag_id = TagName.where(tag_id: tag_ids, language_code:, primary_flg: true)
+        .pluck(:tag_id, :name, :auto_generated).to_h do |id, name, automatic|
+      [id, { name:, auto_generated: automatic }]
+    end
     user_ids = rows.map(&:created_by_user_id).compact.uniq
     users_by_id = User.where(id: user_ids).pluck(:id, :name).to_h
     parent_ids = rows.flat_map do |row|
@@ -69,6 +74,7 @@ class TagVersionsController < ApplicationController
         event_type: row.event_type,
         names: row.names,
         name_changes: name_changes(row.names, row.attributes['prev_names']),
+        current_name_reference: current_names_by_tag_id[row.tag_id],
         name: { current: current_names['name'], prev: previous_names['name'] },
         category: { current: row.category, prev: row.attributes['prev_category'] },
         deprecated_at: { current: row.deprecated_at&.iso8601,