fixes #3102

app/logical/pixiv_api_client.rb

@@ -96,7 +96,7 @@ class PixivApiClient
       @page_count = json["page_count"].to_i
       @artist_commentary_title = json["title"]
       @artist_commentary_desc = json["caption"]
-      @tags = [json["tags"], json["tools"]].flatten.compact
+      @tags = [json["tags"], json["tools"]].flatten.compact.reject {|x| x =~ /^http:/}
 
       if page_count > 1
         @pages = json["metadata"]["pages"].map {|x| x["image_urls"]["large"]}

app/logical/sources/site.rb

@@ -54,6 +54,7 @@ module Sources
           tag
         end
       end
+      untranslated_tags.reject! {|x| x.blank?}
       WikiPage.other_names_equal(untranslated_tags).map{|wiki_page| [wiki_page.title, wiki_page.category_name]}
     end