Gui: [skip ci] fix regression by using UTF-8 encoding in PropertyItem::setPropertyValue

src/Gui/propertyeditor/PropertyItem.cpp

@@ -502,7 +502,7 @@ void PropertyItem::setPropertyValue(const QString& value)
         }
 
         ss << parent->getPropertyPrefix() << prop->getName()
-           << " = " << value.toLatin1().constData() << '\n';
+           << " = " << value.toUtf8().constData() << '\n';
     }
 
     std::string cmd = ss.str();