#354

backend/app/controllers/posts_controller.rb

@@ -700,8 +700,8 @@ class PostsController < ApplicationController
 
   def editable_tag_names_from_version version
     version.tags_json
-        .reject { _1[:name].downcase.start_with?('nico:') }
-        .map { tag_literal(_1) }
+        .reject { _1.fetch('category') == 'nico' }
+        .map { Post.tag_snapshot_literal(_1) }
         .sort
   end