According to the webrtc release notes for M92, https://groups.google.com/g/discuss-webrtc/c/hks5zneZJbo
the branch was 4515.
I can see the latest commit on it is supposed to be 01f0145da37acadacd53b1f0c3afd5f1e0a48f3d but that was added later.
Fetching the tags doesn't give me any of them.
How do I checkout the code for 92.0.4515.159 ?