Problem: 'showbreak' cannot be set for one window.
Solution: Make 'showbreak' global-local.
ee85702c10
Change in oneleft() is N/A as the relevant condition was removed
(has_mbyte is always true for Nvim, so the condition was always false;
see commit 73dc9e9).
Use wp over curwin for curs_columns().
Required for v8.2.2903 (otherwise test fails as it'll leave the global
option set).
N/A patches for version.c:
vim-patch:8.1.2283: missed on use of p_sbr
Problem: Missed on use of p_sbr.
Solution: Add missing p_sbr change.
91e22eb6e0
Already ported in commit 43a874a.