patch 8.2.4969: changing text in Visual mode may cause invalid memory access Commit: https://github.com/vim/vim/commit/7ce5b2b590256ce53d6af28c1d203fb3bc1d2d97 Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 16 19:40:59 2022 +0100 patch 8.2.4969: changing text in Visual mode may cause invalid memory access Problem: Changing text in Visual mode may cause invalid memory access. Solution: Check the Visual position after making a change.

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