* Improve performance of abort_entries_match
In #90406 a ChainMap was added which called __iter__
and __contains__ which ends up creating temp dicts
for matching
174e9da083/Lib/collections/__init__.py (L1022)
We can avoid this by removing the ChainMap since there
are only two mappings to match on.
This also means options no longer obscures data
* adjust comment