Fixes: NB#255882, Vkb sign change button clears text entry content
Fixes: NB#255882, Vkb sign change button clears text entry content

RevBy: Pekka Vuorela
Details: Instead of replacing the sign-toggled word, uiserver sends
only the sign mark. If result is disallowed then only the sign is
discarded, not the whole content.

KDE/plasma-maliit-plugins,develersrl/maliit-demo-qml,maliit/plugins,maliit/plugins,develersrl/maliit-demo-qml,maliit/plugins,RHawkeyed/plugins,maliit/plugins,develersrl/maliit-demo-qml,KDE/plasma-maliit-plugins,RHawkeyed/plugins,RHawkeyed/plugins,RHawkeyed/plugins,develersrl/maliit-demo-qml,RHawkeyed/plugins,KDE/plasma-maliit-plugins,KDE/plasma-maliit-plugins