commit https://github.com/vim/vim/commit/8dd3a43d75550e9b5736066124c97697564f769e Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 1 20:46:25 2016 +0200 patch 7.4.2142 Problem: Leaking memory when redefining a function. Solution: Don't increment the function reference count when it's found by name. Don't remove the wrong function from the hashtab. More reference counting fixes.

Tests for multi-line regexps with ":s". vim: set ft=vim :

STARTTEST
:" test if replacing a line break works with a back reference
:/^1/,/^2/s/\n\(.\)/ \1/
:" test if inserting a line break works with a back reference
:/^3/,/^4/s/\(.\)$/\r\1/
:" test if replacing a line break with another line break works
:/^5/,/^6/s/\(\_d\{3}\)/x\1x/
:/^1/,$w! test.out
:qa!
ENDTEST

1 aa
bb
cc
2 dd
ee
3 ef
gh
4 ij
5 a8
8b c9
9d
6 e7
77f
xxxxx