commit https://github.com/vim/vim/commit/ef3abc6442260e9a0314970a532400b05571d3fe Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 29 16:44:26 2016 +0200 patch 7.4.1859 Problem: Cannot use a function reference for "exit_cb". Solution: Use get_callback(). (Yegappan Lakshmanan)

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