bug#22250: 25.0.50; Eww fails to break RTL paragraph

[Benjamin Riefenstahl]

I load the attached HTML file in a git Emacs (branch emacs-25, revision
f9d87dd) with eww-open-file.  Emacs shows two lines with the first one
being very long, instead of wrapping the paragraph as expected.  The
command I execute:

  ./emacs -Q --eval '(eww-open-file "test.html")'

abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc abc

eww.png
Description: PNG image