patch 8.2.3056: Vim9: using default value in lambda gives confusing error Commit: https://github.com/vim/vim/commit/14ded11fcad77ebf41032ec80a95d516ca9acb1c Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 26 19:25:49 2021 +0200 patch 8.2.3056: Vim9: using default value in lambda gives confusing error Problem: Vim9: using default value in lambda gives confusing error. Solution: Pass "default_args" on the first pass to get the arguments. (closes #8455)

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