fdo#34214: Fixed selection by arrow keys around merged cells.
fdo#34214: Fixed selection by arrow keys around merged cells.

Signed-off-by: Markus Mohrhard <17b5858c03a410e5ca9ee070d93f5b34144a17e4@googlemail.com>

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