commit https://github.com/vim/vim/commit/2faa29f896252073b53f387406109e331fbbe5f8 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 23 23:02:34 2016 +0100 patch 7.4.1161 Problem: ":argadd" without argument is supposed to add the current buffer name to the arglist. Solution: Make it work as documented. (Coot, closes https://github.com/vim/vim/issues/577)

		O sodales, ludite, vos qui attamen consulite per voster honur.
Tua pulchra facies me fay planszer milies

This line.  Should be joined with the next line and with this line

Results:
First test: Start/End '[0, 16, 1, 0]/[0, 17, 1, 0]'
Second test: Start/End '[0, 19, 11, 0]/[0, 19, 67, 0]'