I had an issue where resizing zsh would sometimes cause garbage characters
to be sent, at least if there was an "active" prompt set up (showed up
mostly with Powerline).

I later noticed that the bug seems to have been fixed for 5.3, it's just
unfortunate that 5.2 is still the default version installed on OSX.

I just wonder if someone could confirm that there was such a bug? And if
there is a workaround for terminal emulator implementations?

Some more detail here: https://github.com/powerline/powerline/issues/1831

-- Jonas Minnberg