cfengine/core — pull request #1650 by tzz (2014-04-16 20:00:24+00:00)
Title: Redmine5271 set empty field

see https://cfengine.com/dev/issues/5271

I don't add the empty string to `*columns` but instead just leave it NULL. It seems like the right thing to do, since that's what came down. But otherwise this is pretty straightforward, I hope you agree.