Content interface connection issues

@seb128 The snapd team has been looking at that issue for good part of the last year, and you can search here in the forum for snap-update-ns and enjoy quite a bit of information around it. Also, in the bug you refer to you’ll see @zyga-snapd responding a few days ago saying:

Zygmunt Krynicki (zyga) wrote on 2017-08-07: #10 This should be fixed now. Can you please try with snapd 2.26.14 (just use stable channel) and report back if it is a problem for you?

So let’s please calm down and try to have a more productive and friendly conversation.