vim-patch:8.2.3952: first line not redrawn when adding lines to an empty buffer
Problem: First line not redrawn when adding lines to an empty buffer.
Solution: Adjust the argument to appended_lines(). (closes vim/vim#9439,
closes vim/vim#9438) https://github.com/vim/vim/commit/1fa3de1ce806ba18ebcc00c6d9a0678a84735463
(cherry picked from commit ba7b30080fe933709269288338d96187f06eaf08)
vim-patch:8.1.2073: when editing a buffer 'colorcolumn' may not work
Problem: When editing a buffer 'colorcolumn' may not work.
Solution: Set the buffer before copying option values. Call check_colorcolumn() after copying window options. https://github.com/vim/vim/commit/010ee9657acf1a9f799079d718998c94e50ccadc
(cherry picked from commit 612696bedc8f178cb08645dfb056f01efacf5122)