examples/ssh /asyncssh-server.py a CTRL-C during the progress kills also the Server

Starting to Discover async, AsyncSSH and as well that very nice prompt_toolkit

Demo (examples/ssh /asyncssh-server.py) seems perfect as "StartPoint" to discover.
Demo is running fine.
But when you Press "CTRL-C" During the progress bar demo it will also kill the Server.
(as well on the client Side)

latest Trackack:

Traceback (most recent call last):
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/base_events.py", line 719, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "/Users/gierig/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/myBBS/test.py", line 117, in main
    await asyncio.Future()
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 123, in run
    raise KeyboardInterrupt()
KeyboardInterrupt

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/gierig/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/myBBS/lib/python3.13/site-packages/prompt_toolkit/contrib/ssh/server.py", line 103, in _interact
    await self.interact(self)
  File "/Users/gierig/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/myBBS/test.py", line 77, in interact
    await asyncio.sleep(0.1)
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/tasks.py", line 718, in sleep
    return await future
           ^^^^^^^^^^^^
asyncio.exceptions.CancelledError
INFO:asyncssh:[conn=0, chan=0] Closing channel
INFO:asyncssh:[conn=0, chan=0] Received channel close
DEBUG:asyncssh:[conn=0] Received disconnect: disconnected by user (11)
INFO:asyncssh:[conn=0, chan=0] Channel closed
Traceback (most recent call last):
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/base_events.py", line 719, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "/Users/gierig/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/myBBS/test.py", line 117, in main
    await asyncio.Future()
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/gierig/Library/Mobile Documents/com~apple~CloudDocs/Documents/code/myBBS/test.py", line 121, in <module>
    asyncio.run(main())
    ~~~~~~~~~~~^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "/opt/homebrew/Cellar/python@3.13/3.13.3/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 123, in run
    raise KeyboardInterrupt()
KeyboardInterrupt

Wonder that a KeyboardInterrupt is rise up till the Server Process.. t should max kill the Ssh Session and not the Server ?

Version seem latest

 pip list
Package           Version
----------------- -------
asyncssh          2.21.0
cffi              1.17.1
cryptography      44.0.3
pip               25.1.1
prompt_toolkit    3.0.51
pycparser         2.22
Pygments          2.19.1
typing_extensions 4.13.2
wcwidth           0.2.13

Not sure where to start to fix that...

Start by running examples/ssh/asyncssh-server.py and pressing CTRL-C during the progress bar, then inspect how the example handles cancellation and server shutdown. The traceback shows cancellation in the interaction coroutine and asyncio.run; done means interrupting the SSH session no longer terminates the server process.