fdo #50343: Fixed crash on xlsx import of file with array formula
fdo #50343: Fixed crash on xlsx import of file with array formula

Follow-up of 7fff98724bc7e3. Buffer only cell formula values via
setCellFormulaValue. Otherwise we get crash in
FormulaBuffer::applyCellFormulaValues() as array/shared/datatable
formulas are treated differently

Change-Id: Ie344b273ec662e8af1bf9fa54e79614393634974

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