fix unhandled exception terminate on ooo48061-1.sxw
fix unhandled exception terminate on ooo48061-1.sxw

Change-Id: Ibacb94e719f42faa87ece48051ed8f72c3c78d02

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