commit https://github.com/vim/vim/commit/f5a39447a8ebe162ee62caa2ee502cd0e65eecaa Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 16 21:04:41 2016 +0200 patch 7.4.2219 Problem: Recursive call to substitute gets stuck in sandbox. (Nikolai Pavlov) Solution: Handle the recursive call. (Christian Brabandt, closes https://github.com/vim/vim/issues/950) Add a test.

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