AttributeError: 'NoneType' object has no attribute 'strip'

[ErichBSchulz]

Issue

in 88.13

agent multi>                                                                                                                                          
ERROR:asyncio:Task exception was never retrieved
future: <Task finished name='Task-14155' coro=<Coder.get_input() done, defined at /home/erich/aider-ce/aider/coders/base_coder.py:1313> exception=AttributeError("'NoneType' object has no attribute 'strip'")>
Traceback (most recent call last):
  File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/runners.py", line 190, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/base_events.py", line 641, in run_until_complete
    self.run_forever()
  File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/base_events.py", line 608, in run_forever
    self._run_once()
  File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/base_events.py", line 1898, in _run_once
    event_list = self._selector.select(timeout)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/selectors.py", line 468, in select
    fd_event_list = self._selector.poll(timeout, max_ev)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/runners.py", line 157, in _on_sigint
    raise KeyboardInterrupt()
KeyboardInterrupt

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/erich/aider-ce/aider/coders/base_coder.py", line 1320, in get_input
    return await self.io.get_input(
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/erich/aider-ce/aider/io.py", line 904, in get_input
    if line.strip("\r\n") and not multiline_input:
       ^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'strip'

Version and model info

No response