don't invalidate the dialog after every typed character
don't invalidate the dialog after every typed character

Change-Id: Ib422edf3b615fec6513887283595f647f5bc197e

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core