DateRangeSeparatedPicker:Validation

Build 3853 on feat/item-action-current-default
Reviewing disabled
Baseline History
Build 3853a6be6a5
Current build. There are unaccepted changes, so build 3634 is still the baseline.
Build 363426210ae current baseline
Accepted by Andrey Yamanov.
Build 3590393bc87
Auto-accepted
Commenting is disabled because there's a newer build on this branch