fix marker export if none is selected
fix marker export if none is selected

Change-Id: I7e09a355d515c4782605602b2e5edc93e70921fd

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