AttributeError exception in apport/REThread.py (line 39)

Binary package hint: apport

I've just started adept_notifier from the command line and triggered a Firefox crash.
This is the result:

$ adept_notifier
firefox-3
Exception in thread Thread-2 (most likely raised during interpreter shutdown):
Traceback (most recent call last):
  File "/usr/lib/python2.5/threading.py", line 486, in __bootstrap_inner
  File "/usr/lib/python2.5/site-packages/apport/REThread.py", line 39, in run
<type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'exc_info'
Unhandled exception in thread started by <bound method REThread.__bootstrap of <REThread(Thread-2, started)>>
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/apport_python_hook.py", line 87, in apport_excepthook
    sys.__excepthook__(exc_type, exc_obj, exc_tb)
AttributeError: 'NoneType' object has no attribute '__excepthook__'

Original exception was:
Traceback (most recent call last):
  File "/usr/lib/python2.5/threading.py", line 462, in __bootstrap
    self.__bootstrap_inner()
  File "/usr/lib/python2.5/threading.py", line 527, in __bootstrap_inner
    _active_limbo_lock.acquire()
AttributeError: 'NoneType' object has no attribute 'acquire'

It seems that "self" wasn't defined anymore in apport/REThread.py:
    def run(self):
        '''Run target function, identical to threading.Thread.run().'''

        if self.__target:
            try:
                self._retval = self.__target(*self.__args, **self.__kwargs)
            except:
                self._exception = sys.exc_info()

And the same applied then to "sys" in apport_excepthook:
    finally:
        # resume original processing to get the default behaviour.
        sys.__excepthook__(exc_type, exc_obj, exc_tb)

This is on Ubuntu Hardy, apport 0.107.