crashtest: fix crash on load of ooo24889-1
crashtest: fix crash on load of ooo24889-1

regression from

Change-Id: Ie12713778112d1c6ddc9ed817af3998a3dcd9ba8
crashtest: don't crash on layout of ooo70429-[1|2]

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