is_date is wrong for readonly cells
Created originally on Bitbucket by scott_stanton_veeva (Scott Stanton)
The implementations for Cell.is_date and ReadOnlyCell.is_date are different. ReadOnlyCell does not handle self.data_type=='d'.
This instance will be upgraded to Heptapod 1.3.3 (GitLab 16.9.6) on 2023-04-25 at 18:00 UTC+2
Created originally on Bitbucket by scott_stanton_veeva (Scott Stanton)
The implementations for Cell.is_date and ReadOnlyCell.is_date are different. ReadOnlyCell does not handle self.data_type=='d'.