False negative check

[asvetlov]

PR aio-libs/aiohttp#3955 is marked red: ("Timeline protection: History fragments missing") but it has correct CHANGES/3551.misc.

@webknjaz please check what is going wrong?

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[webknjaz]

It's explained in the details section of https://github.com/aio-libs/aiohttp/runs/183618685:

No files matching re.compile('CHANGES/(?P<issue_number>[^\./]+).(?P<fragment_type>bugfix|doc|feature|removal|trivial|vendor)(.\d+)?(.[^\./]+)*$') pattern added

Since
https://github.com/aio-libs/aiohttp/blob/master/pyproject.toml doesn't list the fragment types, the bot falls back to a hard-coded list defined here:
https://github.com/sanitizers/chronographer-github-app/blob/0a112ca/chronographer/event_handlers.py#L258-L265

[webknjaz]

When the config has clearly defined types, the bot uses those for checking fragments. Here's a few examples:

• https://github.com/tox-dev/tox/blob/94436c3/pyproject.toml#L21-L49
• https://github.com/pypa/pip/blob/82dbcda/pyproject.toml#L13-L46

[webknjaz]

Maybe I could use https://github.com/hawkowl/towncrier/blob/ecd438c/src/towncrier/_settings.py#L13-L21 to identify defaults in a more stable way.