BURs: fix rewriting wiki links with qualifiers.

When renaming a tag and the new tag has a qualifier, use the pipe trick
to hide the qualifier in wiki links. For example, renaming Fallout to
Fallout_(series) should change wiki links from [[Fallout]] to [[Fallout
(series)|]].

app/logical/d_text.rb

@@ -176,7 +176,6 @@ class DText
 
       # Strip qualifiers, e.g. `atago (midsummer march) (azur lane)` => `atago`
       unqualified_name = name.tr("_", " ").squeeze(" ").strip.gsub(/( \(.*\))+\z/, "")
-      has_qualifier = name.match?(/( \(.*\))+\z/)
 
       # If old tag was lowercase, e.g. [[ink tank (Splatoon)]], then keep new tag in lowercase.
       if unqualified_name == unqualified_name.downcase
@@ -195,7 +194,8 @@ class DText
 
       if title.present?
         "[[#{final_name}|#{title}]]"
-      elsif has_qualifier
+      # If the new name has a qualifier, then hide the qualifier in the link.
+      elsif final_name.match?(/( \(.*\))+\z/)
         "[[#{final_name}|]]"
       else
         "[[#{final_name}]]"

test/unit/d_text_test.rb

@@ -151,6 +151,8 @@ class DTextTest < ActiveSupport::TestCase
 
         assert_rewrite_wiki_links("[[Zelda no Densetsu]]", "[[Zelda no Densetsu]]", "zelda_no_densetsu", "the_legend_of_zelda")
         assert_rewrite_wiki_links("[[Zelda_no_Densetsu]]", "[[Zelda_no_Densetsu]]", "zelda_no_densetsu", "the_legend_of_zelda")
+
+        assert_rewrite_wiki_links("[[Mario (series)|]]", "[[Mario]]", "mario", "mario_(series)")
       end
     end