Comment 1 for bug 1656319

The treatment of hyphens comes from the ICU library. If you disagree
with the rules ICU uses you should ask them to change it. As for making
soft-hyphens visible, simply use a search and replace to replace them
with some visible character, perform whatever operations you want and
then search and replace the character back with a soft-hyphen. Trying to
make the text editing widget display invisible characters, is waaay too
much work, as it requires changes to Qt code.

 status wontfix