commit https://github.com/vim/vim/commit/8b877ac38e96424a08a8b8eb713ef4b3cf0064be Author: Bram Moolenaar <Bram@vim.org> Date: Mon Mar 28 19:16:20 2016 +0200 patch 7.4.1669 Problem: When writing buffer lines to a pipe Vim may block. Solution: Avoid blocking, write more lines later.

Test changelist position after splitting window
Set 'undolevels' to make changelist for sourced file

STARTTEST
:so small.vim
Gkylp:set ul=100
Gylp:set ul=100
gg
:vsplit
:try
:  normal g;
:  normal ggVGcpass
:catch
:  normal ggVGcfail
:finally
:  %w! test.out
:endtry
:qa!
ENDTEST

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