patch 8.2.4492: no error if an option is given a value with ":let &opt = val" Commit: https://github.com/vim/vim/commit/8ccbbeb620dcc73154de29c51100fe815cefe109 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 2 19:49:38 2022 +0000 patch 8.2.4492: no error if an option is given a value with ":let &opt = val" Problem: No error if an option is given an invalid value with ":let &opt = val". Solution: Give the error. (closes #9864)

let g:loaded_foo_vim += 1

let foo#bar = {}

func foo#bar.echo()
  let g:called_foo_bar_echo += 1
endfunc

func foo#addFoo(head)
  return a:head .. 'foo'
endfunc

func foo#()
  return 'empty'
endfunc