patch 8.2.3462: ModeChanged only uses one character for new_mode and old_mode Commit: https://github.com/vim/vim/commit/d85931e67316e824878000d0ead122553ccef3a4 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 2 16:55:39 2021 +0100 patch 8.2.3462: ModeChanged only uses one character for new_mode and old_mode Problem: The ModeChanged event only uses one character for the new_mode and old_mode values. Solution: Pass one as first argument to mode(). (issue #8856)

Tests for complicated + argument to :edit command

STARTTEST
:$-1w! Xfile1
:$w! Xfile2
:edit +1|s/|/PIPE/|w Xfile1| e Xfile2|1 | s/\//SLASH/|w
:w! test.out
:e Xfile1
:w >> test.out
:qa!
ENDTEST

The result should be in Xfile1: "fooPIPEbar", in Xfile2: "fooSLASHbar"
foo|bar
foo/bar