Ensure that only ScDPCollection can remove caches.
Ensure that only ScDPCollection can remove caches.

Call ScDPCollection::ClearCache() to remove cache during refreshing.

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