#55

backend/app/services/post_import_previewer.rb

@@ -463,7 +463,7 @@ class PostImportPreviewer
       TagName.canonicalise(locale, name.sub(/\[.*\]\z/, '')).first
     }
     existing = parsed.filter_map { known_tags[_1] }
-    deprecated = existing.select(&:deprecated?).map(&:name)
+    deprecated = existing.select(&:deprecated?).map { _1.name(locale.language_code) }
     errors[:tags] = ["廃止済みタグがあります: #{ deprecated.join(' ') }"] if deprecated.present?
   rescue Tag::SectionLiteralParseError
     errors[:tags] = ['タグ区間の記法が不正です．']