Notifications: Don't change the resource_id on POST unnecessarily
Notifications: Don't change the resource_id on POST unnecessarily

If there is a subresource in the path, then the POST request will be to
create the subresource, not the resource itself. In that situation the
resource_id from the path shouldn't be overwritten.

Change-Id: I4467097b21a0e8ad70eb1d21dad93dcb0b1d3a64

ColdrickSotK/storyboard,ColdrickSotK/storyboard,ColdrickSotK/storyboard