Fix read only worksheets incorrectly handling datetime and timedelta objects when parsing
Fixes issue #1973 (closed) , timedelta cells are correctly identified now. Added tests --HG-- branch : 3.1
All legacy (hg-git based) Projects have been automatically migrated to native with the upgrade of 2025-01-23
Fixes issue #1973 (closed) , timedelta cells are correctly identified now. Added tests --HG-- branch : 3.1