commit https://github.com/vim/vim/commit/22e421549d54147d003f6444de007cb1d73f1d27 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 3 14:02:02 2016 +0200 patch 7.4.1700 Problem: Equivalence classes are not properly tested. Solution: Add tests for multi-byte and latin1. Fix an error. (Owen Leibman)

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