It's mildly interesting that the neovim patch for this [1] is just an import of the upstream vim patch [2], but with the test removed.
1: https://github.com/neovim/neovim/commit/4553fc5e 2: https://github.com/vim/vim/commit/5357552
1: https://github.com/neovim/neovim/commit/4553fc5e 2: https://github.com/vim/vim/commit/5357552