Delegated user doesn't received notification for approval

Hello,

We are testing the "Roles and delegation" Apps, and I delegate a role and approval to the same user, at the same date.

When I'm logged with the delegated user, I can see the feature of the role delegated (quick action, apps, Group page allowed with this role).

But when I'm testing the approval rule for a transaction (for example, Manage contracts), I see that the approbation is triggered to the original User, and not the delegated one. The delegated user should receive a notification that someone created an approval delegation rule, and the notifications related to the approval rules.