Panic: reuse-of-groupby-generator (B031) + match list(group) #26624

from itertools import groupby


for key, group in groupby([]):
    match list(group):
        case _:
            pass

uvx --python 3.14.6 ruff check --isolated --select B031
panic: Panicked at crates/ruff_linter/src/rules/flake8_bugbear/rules/reuse_of_groupby_generator.rs:99:30 when checking `/home/joergherbel/tmp/B031_ruff_crash/repro.py`: `called `Option::unwrap()` on a `None` value`
--> repro.py:1:1
info: This indicates a bug in Ruff.
info: If you could open an issue at https://github.com/astral-sh/ruff/issues/new?title=%5Bpanic%5D, we'd be very appreciative!
info: run with `RUST_BACKTRACE=1` environment variable to show the full backtrace information

Found 1 error.
error: Panic during linting indicates a bug in Ruff. If you could open an issue at:

https://github.com/astral-sh/ruff/issues/new?title=%5BLinter%20panic%5D

...with the relevant file contents, the `pyproject.toml` settings, and the stack trace above, we'd be very appreciative!

from itertools import groupby


for key, group in groupby([]):
    group_list = list(group)
    match group_list:
        case _:
            pass