do not display missing data source always as "SOURCE"
do not display missing data source always as "SOURCE"

Broken by cc6f43275a00b0aff2e60e70ee8032222a2c9610.

Change-Id: Ie870dea874327639460349b239525e4ce77dd8fe

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