gh-93065: Fix HAMT to iterate correctly over 7-level deep trees by 1st1 · Pull Request #93066 · python/cpython
@molaxx Eli, the commit is a bit more involved now as I added a comment explaining the fix + a test. I'd prefer to keep this PR and merge it.
That said, this change is yours, so I changed the author of the commit to your name and also added you to Misc/ACKS.
Now since you're the author, you need to accept our CLA here: #93066 (comment)