[Bug Report] NullReferenceException in LINQPad.Extensions.Dump w/ NameValueCollection w/ nulls

The NameValueCollection collection type allows null names and null values:

NameValueCollection nvc = new NameValueCollection();
nvc.Add( name: "name1", value: null );
nvc.Add( name: "name2", value: "123" );
nvc.Add( name: null   , value: "456" );

I can iterate the contents manually just fine in LinqPad:

foreach( Object? nameObj in nvc )
{
    String? name = (String?)nameObj;

    String[]? values = nvc.GetValues( name );
    if( values is null )
    {
        ( name, "special null" ).Dump();
    }
    else
    {
        foreach( String? v in values )
        {
            ( name, v ).Dump();
        }
    }
}

...but using nvc.Dump() causes an internal NRE:

//nvc.Dump();