Index: update-manager/UpdateManager/ChangelogViewer.py
===================================================================
--- update-manager.orig/UpdateManager/ChangelogViewer.py	2012-06-09 21:50:59.087307047 +0300
+++ update-manager/UpdateManager/ChangelogViewer.py	2012-06-09 21:53:51.888163938 +0300
@@ -112,7 +112,7 @@
         tag.set_data("url", url)
         self.buffer.apply_tag(tag , start, end)
 
-    def on_insert_text(self, buffer, iter_end, text, *args):
+    def on_insert_text(self, buffer, iter_end, content, *args):
         """Search for http URLs in newly inserted text  
            and tag them accordingly"""
 
@@ -146,11 +146,11 @@
                          ("closes: #",ws+brak+dot, DEBIAN),
                          ("CVE-", ws+brak+dot, CVE),
                        ]
-        # init
-        iter = buffer.get_iter_at_offset(iter_end.get_offset() - len(text))
 
         # search for the next match in the buffer
         for (start_str, end_list, url_prefix) in search_items:
+            # init
+            iter = buffer.get_iter_at_offset(iter_end.get_offset() - len(content))
             while True:
                 ret = iter.forward_search(start_str,
                                           Gtk.TextSearchFlags.VISIBLE_ONLY,