Code review comment for ~ahasenack/ubuntu/+source/samba:cosmic-samba-merge-4.8-1778125

Reopening this, after I rebased it on 4.8.4. Given that the regression bug is also present in 4.7.7, and in 4.8.1 and later in the 4.8.x series, I believe either not many people are affected, or it's not important enough, because these releases have been out there for some time now. The benefits outweigh the cons here in my opinion.

Bileto ticket: https://bileto.ubuntu.com/#/ticket/3373

There is a nagging gvfs s390x test failure: http://autopkgtest.ubuntu.com/packages/gvfs/cosmic/s390x looks like it "never" passed and is not related to samba. I will try it in s390x later to see if I can reproduce it, file a bug upstream if that's the case, etc, we know the drill.