Fix preedit text visibility when TextInput is empty
Fix preedit text visibility when TextInput is empty

Task-number: QTBUG-22646

Change-Id: I5162ffdebdee6f956a9a79b2307a2ac53cc4890b
Reviewed-by: Eskil Abrahamsen Blomfeldt <e4034124b095075783ce739a2d1c68c0d66fa1fd@nokia.com>

matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,matthewvogt/qtdeclarative,jfaust/qtdeclarative,jfaust/qtdeclarative,corngood/qtdeclarative,corngood/qtdeclarative,matthewvogt/qtdeclarative,corngood/qtdeclarative,qmlc/qtdeclarative,jfaust/qtdeclarative,mgrunditz/qtdeclarative-2d,jfaust/qtdeclarative,corngood/qtdeclarative,mgrunditz/qtdeclarative-2d,corngood/qtdeclarative,jfaust/qtdeclarative,corngood/qtdeclarative,mgrunditz/qtdeclarative-2d,crobertd/qtdeclarative,crobertd/qtdeclarative,jfaust/qtdeclarative,qmlc/qtdeclarative,jfaust/qtdeclarative,crobertd/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,qmlc/qtdeclarative,qmlc/qtdeclarative,mgrunditz/qtdeclarative-2d,qmlc/qtdeclarative,crobertd/qtdeclarative,crobertd/qtdeclarative,qmlc/qtdeclarative,crobertd/qtdeclarative,qmlc/qtdeclarative,matthewvogt/qtdeclarative,qmlc/qtdeclarative,matthewvogt/qtdeclarative,crobertd/qtdeclarative,corngood/qtdeclarative