Bcachefs lead developer Kent Overstreet published a Patreon post this evening entitled “Trouble in the kernel” where he explained:

"TLDR: the future of bcachefs in the kernel is uncertain, and lots of things aren’t looking good.

Linus has said he isn’t accepting my 6.13 pull request, per “an open issue with the CoC board”, and at this point I have no idea what’s going on with the CoC board. I, for my part, have felt for quite some time that there are issues about our culture and the way we do work that need to be raised, and that hasn’t been going anywhere - hence this post."

It appears that the source of this violation can be found in this Linux kernel mailing list thread.