public ProductDiscussionInitiated(TenantId tenantId, ProductId productId, ProductDiscussion productDiscussion)
        {
            this.TenantId = tenantId;
            this.ProductId = productId;
            this.ProductDiscussion = productDiscussion;

            this.EventVersion = 1;
            this.OccurredOn = DateTime.Now;
        }
 public ProductDiscussion(ProductDiscussion productDiscussion)
     : this(productDiscussion.Descriptor, productDiscussion.Availability)
 {
 }