Timepicker: Invalid value in the field is removed when focus lost

[lauribenno]

Timepicker shows behaviour that is inconsistent with datepicker (and other input fields as well) when handling invalid input.

Steps to reproduce:

• Enter 25 in first field
• Tab to second field
• Enter 6 => first field is changed to 2 => should stay 25 and marked as invalid

Expected behaviour: Invalid fields are marked but invalid input is still displayed in the field.
Same problem in the other direction as well.

[rvanbaalen]

First step to reproduce: provide us with a plunkr.

[wesleycho]

This is easily reproduced on the basic Plunker, as seen here.

This is certainly unexpected behavior.