datetimepicker - wrong validatio

[agrudz]

I use datepicker and i'm trying to type date using keyboard. The specified format for datetimepicker is yyyy-MM-dd. When i type whole data it works correct. when i tries to change for examle month it starts to fail.
The path to the bug looks like this:

1. I have correct date in my datetimepicker for example 2015-07-14
2. I whant to change it to 2015-08-14 so i start editing it and im removing 7 - i have 2015-0-14 writen in my datetimepicker. The validation shows me that it is not correct date ant this is fine for me
   3.I type 8 and i have 2015-08-14 in my datetimepicker. The validation message still shows up...
   There is a screen from my debuger -
   
   You can notice that houres, minutes and seconds have NaN values. The bug is easy to correct.
   I edited this piece of code
   i replace this :
   if ( isValid(fields.year, fields.month, fields.date) ) {
   dt = new Date(fields.year, fields.month, fields.date, fields.hours, fields.minutes, fields.seconds,
   fields.milliseconds || 0);
   }
   with:

   dt = new Date(fields.year, fields.month, fields.date, fields.hours || 0, fields.minutes || 0, fields.seconds || 0,
      fields.milliseconds || 0);

[goliney]

I have problems with direct input editing too. Here is plunkr with bug description:
http://plnkr.co/edit/SJpireJtJfTmeK80QmGi?p=preview

[inaccessible]

+1

[zlailari]

+1

[wesleycho]

This is a duplicate of #3713 . I believe that #3759 will address this.