gridsort: fix calculation of nActualRows when rendering the row header area - there were edge cases where this area was too large
gridsort: fix calculation of nActualRows when rendering the row header area - there were edge cases where this area was too large
JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core