[LyX/master] Have OK/Apply buttons initially disabled.

[Juergen Spitzmueller]

commit fe18bea3d07be1987a8c6c561b4c714e0c4fad2a
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Sat May 5 11:33:45 2018 +0200

    Have OK/Apply buttons initially disabled.
---
 src/frontends/qt4/GuiCharacter.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/frontends/qt4/GuiCharacter.cpp 
b/src/frontends/qt4/GuiCharacter.cpp
index 295b59e..349fea2 100644
--- a/src/frontends/qt4/GuiCharacter.cpp
+++ b/src/frontends/qt4/GuiCharacter.cpp
@@ -526,6 +526,8 @@ void GuiCharacter::paramsToDialog(Font const & font)
        QString const lang = (font.language() == reset_language)
                ? "reset" : toqstr(font.language()->lang());
        langCO->setCurrentIndex(findPos2nd(language, lang));
+       // disable the OK/Apply buttons, since we have no changes yet
+       bc().setValid(false);
 }