Resolves: tdf#89179 fix Undo of Numbering Level change crash
Resolves: tdf#89179 fix Undo of Numbering Level change crash

regression from long paras presumably

Change-Id: Ib89169e52e42fcbe6f8e1ab0a2eb9871d38ff06d

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