This bug is not *obviously* known to dask upstream, but their CI is
failing and I haven't checked why.
It happens only in Python 3.12, not 3.11:
https://ci.debian.net/packages/d/dask/unstable/amd64/45013666/
and still doesn't happen in testing, but does happen in mostly-testing
with
src:python3-defaults,src:db5.3,src:keras,src:nodejs,src:openssl,src:python3-stdlib-extensions,src:python3.11,src:python3.12,src:readline,src:udisks2,src:viagee
from unstable:
https://ci.debian.net/packages/d/dask/testing/amd64/45564690/
This suggests that the trigger may be the upgrade of Python itself
(3.12.2-1 in testing -> 3.12.3-1 in unstable).
*Possibly* related items from the upstream Python changelog:
https://github.com/python/cpython/issues/101293
https://github.com/python/cpython/issues/117110
