commit https://github.com/vim/vim/commit/6835dc61aebca2b602d85a9d63c449ace58683b4 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 24 17:33:05 2016 +0200 patch 7.4.2100 Problem: "cgn" and "dgn" do not work correctly with a single character match and the replacement includes the searched pattern. (John Beckett) Solution: If the match is found in the wrong column try in the next column. Turn the test into new style. (Christian Brabandt)

		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]'