Difference between Timesheet and Timesheet's Validation

Hello, all,

I'm having a problem with the timesheet validation of a week with a holiday.

For instance, this resource, entered this information on his timesheet, with work on a holiday (by mistake) :
 

The april, 5th is an holiday and I think the work of this day should be red, just like the total of the week.
But the main issue is that on the timesheet validation's screen only 4days are counted and everything is green.

 

It's very easy to pass by a mistake like this without seeing it.

We'll upgrade soon, but the issue is confirmed on version 9.0.5.

Regards,
MCanuto