Brew install --HEAD neovim failing for some time on macOS

brew install --HEAD neovim (on macOS Sequoia) used to work until about a month ago. Now it fails with

error: Could not read 03933fe4c03df19ddd1db06ad04e615614e64eb2
fatal: missing blob object '32055400889dd80c2852bfdda9886c694cba292e'
error: https://github.com/neovim/neovim.git did not send all necessary objects
Error: neovim: Failed to download resource "neovim"
Failure while executing; `/usr/bin/env git fetch origin` exited with 1. Here's the output:
error: Could not read 03933fe4c03df19ddd1db06ad04e615614e64eb2
fatal: missing blob object '32055400889dd80c2852bfdda9886c694cba292e'
error: https://github.com/neovim/neovim.git did not send all necessary objects

I’m making do with the non-HEAD neovim for now, but I’m curious, has anyone else encountered this problem and if they solved it, how? (I’ve tried installing HEAD versions of tree-sitter and utf8proc to see if that would fix the issue, but it doesn’t.)

Thanks
–d