countDownTimer UIDatePicker in compact style always return 0 for countDownDuration property in mac catalyst

Number:rdar://FB7743945 Date Originated:20 June 2020
Status:Open Resolved:No
Product:Mac Catalyst Product Version:above 10.15.4
Classification:Incorrect/Unexpected Behavior Reproducible:Always
1. Initialise a UIDatePicker.
2. Set its preferredDatePickerStyle to compact
3. Set datePickerMode to countDownTimer
4. Add it in view and run
5. Read the countDownDuration property of the date picker. It always returns 0 even after providing appropriate duration in the UI


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