parent task should not be added

[tibistibi]

when i have a task: A with kid taks 1,2,3,4 each one hour of work. i will have an issue list item hours A 4 1 1 2 1 3 1 4 1

the parent task is a sum of work for the kids task. this should be excluded in the totals.

is there a way to know if the hours of a task is from its own or from its kids?

[logical-and]

I add patch later.