improves humanized_essential_tag_string

app/presenters/post_presenter.rb

@@ -55,8 +55,8 @@ class PostPresenter < Presenter
     end
 
     if @post.copyright_tags.any?
-      string << "from"
-      string << @post.copyright_tags.slice(0, 5).to_sentence
+      copytags = @post.copyright_tags.slice(0, 5).to_sentence
+      string << (@post.character_tags.any? ? "(#{copytags})" : copytags)
     end
 
     if @post.artist_tags.any?
@@ -64,7 +64,7 @@ class PostPresenter < Presenter
       string << @post.artist_tags.to_sentence
     end
 
-    string.join(" ").tr("_", " ")
+    string.empty? ? "##{@post.id}" : string.join(" ").tr("_", " ")
   end
 
   def categorized_tag_string

app/views/posts/show.html.erb

@@ -95,7 +95,7 @@
 </div>
 
 <% content_for(:page_title) do %>
-  <%= @post.presenter.humanized_categorized_tag_string %> - <%= Danbooru.config.app_name %>
+  <%= @post.presenter.humanized_essential_tag_string %> - <%= Danbooru.config.app_name %>
 <% end %>
 
 <% content_for(:html_header) do %>