Created Issue: Strange Time controls TextBox behavior (DateTimePicker, TimePicker) [19484]

i have encountered two strange behaviours:

1. There is no validation on text length in edit mode. (example: i can enter letters and remove the ':' part)
2. if i change this: 00:00:00 to this 00:0:00 selecting the seconds part of the time will be wierd (every zero of the seconds part will be selected separatly when using the mouse)

Thanks.