patch 9.0.1357: using null_object results in an internal error Commit: https://github.com/vim/vim/commit/c4e1b86cb0d88fa5ec1141d3c600e026dcc1bc21 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 26 18:58:23 2023 +0000 patch 9.0.1357: using null_object results in an internal error Problem: Using null_object results in an internal error. (Ernie Rael) Solution: Add instructions for pushing an object and class. (closes https://github.com/vim/vim/issues/12044)

Tests for file with some lines ending in CTRL-M, some not

STARTTEST
:set ta tx
:e!
:$-3,$w! test.out
:qa!
ENDTEST

this lines ends in a
this one doesn't
this one does
and the last one doesn't