Do not output ZERO WIDTH NON JOINER glyph for ligature break via toString

I do not see where this is really useful (contrary to real plaintext). And it breaks spell checking with hunspell and 8bit disctionaries (part of bug #8526)

diff --git a/src/insets/InsetSpecialChar.cpp b/src/insets/InsetSpecialChar.cpp
index 9e7346ffbf6c307fb2064a991438ab294ea8338a..0099fc4e1ee750eaae4ff260b32d0cbfde0edc7a 100644 (file)
--- a/src/insets/InsetSpecialChar.cpp
+++ b/src/insets/InsetSpecialChar.cpp
@@ -323,7 +323,14 @@ docstring InsetSpecialChar::xhtml(XHTMLStream & xs, OutputParams const &) const
 
 void InsetSpecialChar::toString(odocstream & os) const
 {
-       plaintext(os, OutputParams(0));
+       switch (kind_) {
+       case LIGATURE_BREAK:
+               // Do not output ZERO WIDTH NON JOINER here
+               // Spell checker would choke on it.
+               return;
+       default:
+               plaintext(os, OutputParams(0));
+       }
 }