Comment 1 for bug 1791820

Here's the Traceback:

Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 597, in <module>
    app.run_argv()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 688, in run_argv
    return self.run_crashes()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 245, in run_crashes
    self.run_crash(f)
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 289, in run_crash
    self.collect_info()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 1077, in collect_info
    bpthread.exc_raise()
  File "/usr/lib/python3/dist-packages/apport/REThread.py", line 63, in exc_raise
    raise self._exception[1].with_traceback(self._exception[2])
  File "/usr/lib/python3/dist-packages/apport/REThread.py", line 33, in run
    self._retval = self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/python3/dist-packages/apport/report.py", line 917, in search_bug_patterns
    patterns = f.read().decode('UTF-8', errors='replace')
  File "/usr/lib/python3.5/http/client.py", line 461, in read
    s = self._safe_read(self.length)
  File "/usr/lib/python3.5/http/client.py", line 609, in _safe_read
    raise IncompleteRead(b''.join(s), amt)
http.client.IncompleteRead: IncompleteRead(29118 bytes read, 74729 more expected)

It looks like the try / except block for loading the bugpattern should also pass on an IncompleteRead.