FIX: Don't extract links from empty quotes

lib/pretty_text.rb

@@ -210,7 +210,7 @@ module PrettyText
     # extract all links from the post
     doc.css("a").each { |l| links << l["href"] unless l["href"].blank? }
     # extract links to quotes
-    doc.css("aside.quote").each do |a|
+    doc.css("aside.quote[data-topic]").each do |a|
       topic_id = a['data-topic']
 
       url = "/t/topic/#{topic_id}"

spec/components/pretty_text_spec.rb

@@ -135,6 +135,10 @@ describe PrettyText do
       PrettyText.excerpt("<a href='http://cnn.com'>cnn</a>",2).should == "<a href='http://cnn.com'>cn&hellip;</a>"
     end
 
+    it "doesn't extract empty quotes as links" do
+      PrettyText.extract_links("<aside class='quote'>not a linked quote</aside>\n").to_a.should be_empty
+    end
+
     it "should be able to extract links" do
       PrettyText.extract_links("<a href='http://cnn.com'>http://bla.com</a>").to_a.should == ["http://cnn.com"]
     end