=== modified file 'data/general-hooks/ubuntu.py'
--- data/general-hooks/ubuntu.py	2012-07-19 14:50:22 +0000
+++ data/general-hooks/ubuntu.py	2012-07-20 18:19:39 +0000
@@ -54,8 +54,17 @@
 
     for log in ['DpkgTerminalLog', 'VarLogDistupgradeApttermlog']:
         if log in report:
+            untrimmed_dpkg_log = report[log]
             check_attachment_for_errors(report, log)
 
+    trimmed_log = report['DpkgTerminalLog'].split('\n')
+    lines = []
+    for line in untrimmed_dpkg_log.decode('UTF-8').splitlines():
+        if line not in trimmed_log:
+            lines.append(line)
+        elif line in trimmed_log:
+            trimmed_log.remove(line)
+    dpkg_log_without_error = '\n'.join(lines)
     # crash reports from live system installer often expose target mount
     for f in ('ExecutablePath', 'InterpreterPath'):
         if f in report and report[f].startswith('/target/'):
@@ -89,8 +98,10 @@
     # build a duplicate signature tag for package reports
     if report.get('ProblemType') == 'Package':
         if 'DpkgTerminalLog' in report:
+            # this was previously trimmed in check_attachment_for_errors
             termlog = report['DpkgTerminalLog']
         elif 'VarLogDistupgradeApttermlog' in report:
+            # this was previously trimmed in check_attachment_for_errors
             termlog = report['VarLogDistupgradeApttermlog']
         else:
             termlog = None
@@ -119,6 +130,9 @@
                         report['DuplicateSignature'] = dupe_sig
                         # the duplicate signature should be the first failure
                         break
+                if dupe_sig:
+                    if dpkg_log_without_error.find(dupe_sig) != -1:
+                        report['UnreportableReason'] = _('You have already encountered this package installation failure.')
 
     # running Unity?
     username = pwd.getpwuid(os.geteuid()).pw_name
@@ -364,7 +378,7 @@
         if start_re.match(line) or trim_re.match(line):
             lines = []
             continue
-        lines.append(str(line))
+        lines.append(line.decode('UTF-8'))
     report['DpkgTerminalLog'] = '\n'.join(lines)
 
     if not report['DpkgTerminalLog'].strip():