Activity to Milestone copy issue

Hi,

V8.0.3

When i copy an activity to a milestone, the validated cost follows form the activity into the milestone, if i'm right, there should not be any amount in a milestone.

Is this a normal behavior ?

Now, in global planning, we are stuck with milestone that have a validated cost.



How can i get rid of the amount in the validated cost column.

I'm able to delete the amount in the validated cost column from the planningelement table directly into the database, but i don't know if it's the right way to do it or if it will impact somethings else.

If i create a milestone without using the copy feature, there is no amount in global planning.

Can you help,

Regards