'str' object has no attribute '__suppress_context__'

[dtolnay]

Running offlineimap 8.0.1, it seems to have finished everything but at the very end fails with this exception:

Account sync Gmail:
 *** Finished account 'Gmail' in 11071:15
ERROR: Exceptions occurred during the run!
ERROR: 'str' object has no attribute '__suppress_context__'
ERROR: Exceptions occurred during the run!
Traceback (most recent call last):
  File "/git/offlineimap3/offlineimap/init.py", line 511, in __sync
    self.ui.terminate()
    ~~~~~~~~~~~~~~~~~^^
  File "/git/offlineimap3/offlineimap/ui/UIBase.py", line 541, in terminate
    exc_str = "".join(traceback.format_exception_only(type(exc), exc))
                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/traceback.py", line 176, in format_exception_only
    te = TracebackException(type(value), value, None, compact=True)
  File "/usr/lib/python3.13/traceback.py", line 1111, in __init__
    exc_value.__suppress_context__ if exc_value is not None else False
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'str' object has no attribute '__suppress_context__'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/git/offlineimap3/./offlineimap.py", line 22, in <module>
    oi.run()
    ~~~~~~^^
  File "/git/offlineimap3/offlineimap/init.py", line 110, in run
    return self.__sync(options)
           ~~~~~~~~~~~^^^^^^^^^
  File "/git/offlineimap3/offlineimap/init.py", line 517, in __sync
    self.ui.terminate()
    ~~~~~~~~~~~~~~~~~^^
  File "/git/offlineimap3/offlineimap/ui/UIBase.py", line 541, in terminate
    exc_str = "".join(traceback.format_exception_only(type(exc), exc))
                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/traceback.py", line 176, in format_exception_only
    te = TracebackException(type(value), value, None, compact=True)
  File "/usr/lib/python3.13/traceback.py", line 1111, in __init__
    exc_value.__suppress_context__ if exc_value is not None else False
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'str' object has no attribute '__suppress_context__'