fdo#72695: avoid double-free race condition for SwXTextTable
fdo#72695: avoid double-free race condition for SwXTextTable

Change-Id: Ibd27e8d61ccbe7d1cdeb72d310acea54198ecd77

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