What does HackerNews think of zlib?

A massively spiffy yet delicately unobtrusive compression library.

Language: C

This seems to be a minor bug, in that it is only triggered using unusual (and rather unlikely) deflate parameters.

But, looking into this bug, I was sort-of interested to see how it was handled. The change log for 1.2.12 (2022-03-27) indicates the issue was resolved ("Fix a bug that can crash deflate on some input when using Z_FIXED"). Yet, in what seems to be the canonical Zlib repository (https://github.com/madler/zlib), I was unable to find a corresponding commit.

None of commits this year (7, so not too hard to review) seem to be particularity meaningful changes, and in particular yesterday's 'zlib 1.2.12' commit seems to only consist of version/copyright updates.

So, does anyone have any idea where to find the commits related to the change log entry? (Note that I'm not disputing the issue is actually fixed, I'm just trying to improve my Github reading skills...)