HasDefaultvalue() for interfaces/generics

[vflame]

Unable to set default value for interfaces/generics.

Not working:

Model:

public class EventTriggers
{
    public IEnumerable<Regex> Triggers { get; private set; }
}

Context Configuration:

builder.OwnsOne(t => t.EventTriggers, trigger =>
    {
        trigger.Property(p => p.Triggers)
            .HasConversion<string>(
                to => to.SerializeToJson(Newtonsoft.Json.Formatting.None, true),
                from => from.DeserializeFromJson<IEnumerable<Regex>>())
            .HasDefaultValue(Enumerable.Empty<Regex>());          
    });

Results in the following when running add-migration:

Cannot set default value 'System.Text.RegularExpressions.Regex[]' of type 'System.Text.RegularExpressions.Regex[]' on property 'Triggers' of type 'System.Collections.Generic.IEnumerable`1[System.Text.RegularExpressions.Regex]' in entity type 'EventTriggers'.

The following is working:

Model:

public class EventTriggers
{
   public List<Regex> Triggers { get; private set; }
}

Context Configuration:

builder.OwnsOne(t => t.EventTriggers, trigger =>
    {
        trigger.Property(p => p.Triggers)
            .HasConversion<string>(
                to => to.SerializeToJson(Newtonsoft.Json.Formatting.None, true),
                from => from.DeserializeFromJson<List<Regex>>())
            .HasDefaultValue(new List<Regex>());          
    });

Is this by design?

EF Core version: 2.2.6
Database provider: npgsql
Target framework: (e.g. .NET Core 2.2)
Operating system: Cross Platform
IDE: VS 2019