E117: Unknown function: <lambda

[jclivi]

Error detected while processing BufWriteCmd Autocommands for "<buffer=3>":
E117: Unknown function: <lambda

[jclivi]

upgrade neovim 6

[elihunter173]

What is the output of nvim --version? I can't reproduce this issue

[jclivi]

@elihunter173
nvim --version did not upgrade, resulting in