I'm not sure why newer versions of screen (or Ubuntu's configuration)
tend to set this weird value of "screen.xterm-256color". The more
readable value "screen-256color" is supported at least since Trusty
14.04 (see https://packages.ubuntu.com/trusty/all/ncurses-
base/filelist), probably much earlier than that (I'm seeing forum posts
about "screen-256color" dated 2011-ish).

I recommend that you configure your local screen to set this value
instead.

Indeed screen setting a new value of "screen.xterm-256color" that hasn't
had years to get deployed across systems is a bug.

(On a somewhat related note, this whole architecture is plain dead
broken. ssh'ing and friends should transfer the entire description of
the current terminal's behavior, not just a name. Then we wouldn't have
to wait for years, anything new would be usable straight away.)

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https://bugs.launchpad.net/bugs/1726826

Title:
  screen 256 colour TERM setting breaks logging into older hosts

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