I am having a problem I can't seem to solve (I am by no way a c# expert)

I have a abstract base entity called BaseContact
From this BaseContact I inherit PhoneContact and EmailContact.

If I try to add the Tenancy to PhoneContact and EmailContact I get the error that filters can only be added to the BaseEntity. But if I only add the Tenancy to the BaseEntity my application crashes trying to add a Phone- or a EmailContact with the message tenantId can not be null.

How do I go about adding tenancy to inherited models?

This Compiles, but crashes upon Creation of inheritated models:

            modelBuilder.Entity<BaseContact>(
                ctx =>
                {
                    ctx.ToTable("Contact");
                    ctx.HasIndex(ct => ct.Id);
                    ctx.HasTenancy(() => _tenancyContext.Tenant.Id, _tenancyModelState, hasIndex: true);
                    ctx.HasQueryFilter(ct => ct.TenantId == _tenancyContext.Tenant.Id);
                }
            );

            modelBuilder.Entity<PhoneContact>().HasBaseType("BaseContact");
            modelBuilder.Entity<EmailContact>().HasBaseType("BaseContact");