This is an example that just has happened in the Ask Ubuntu General Room.
You see a long multiline (code) message in the screenshot above. As last line, it shows the
(see full text) link, so that means it got folded to occupy less space.
But when you click the link to expand the folded message, you see that it actually did not hide any single line! It just added the link, but without really shortening the original message:
I think this is a bug, probably a typo in the part of the code where it gets checked whether a message is long enough to become folded.
This happens in all browsers I checked (Firefox 42 and Chromium 45; both on Ubuntu 15.10) and no matter whether I am logged in or view the chat room anonymously.
Please fix this, so that it only shows the
(see full text) link when it really folds/hides lines of a message.