Bulk insert 9.0.1 does not insert all columns

[thomDesan]

Bulk insert create a wrong sql merge statement (was working with version 8)
See generated SQL where in the insert statement the data column is missing

MERGE [dbo].[Locations] WITH (HOLDLOCK) AS T USING 
(SELECT TOP 1 * FROM [dbo].[LocationsTemp8d9864dc] ORDER BY [ExternalId]) AS S ON T.[ExternalId] = S.[ExternalId] 
	WHEN NOT MATCHED BY TARGET 
	THEN INSERT ([ConcernId], [CreatedDate], [DeletedDate], [ExternalId], [ModificationDate]) 
	VALUES (S.[ConcernId], S.[CreatedDate], S.[DeletedDate], S.[ExternalId], S.[ModificationDate]) 
	WHEN MATCHED AND EXISTS (SELECT S.[ConcernId], S.[CreatedDate], S.[Data], S.[DeletedDate], S.[ExternalId], S.[ModificationDate] EXCEPT SELECT T.[ConcernId], T.[CreatedDate], T.[Data], T.[DeletedDate], T.[ExternalId], T.[ModificationDate]) 
	THEN UPDATE SET 
		T.[ConcernId] = S.[ConcernId], 
		T.[Data] = S.[Data], 
		T.[DeletedDate] = S.[DeletedDate], 
		T.[ExternalId] = S.[ExternalId], 
		T.[ModificationDate] = S.[ModificationDate];
go

c# code

var bulkConfig = new BulkConfig
{
    UpdateByProperties = [nameof(Location.ExternalId)],
    PropertiesToExcludeOnUpdate = [nameof(Location.CreatedDate), nameof(Concern.Id)]
};
await SetExternalIds(model);
await ctx.BulkInsertOrUpdateAsync(model, bulkConfig);

table

    public int Id { get; set; }
    public Concern Concern { get; set; } = null!;
    public int ConcernId { get; set; }
    public LocationData Data { get; set; } = new();
    public DateTime CreatedDate { get; set; }
    public DateTime ModificationDate { get; set; }
    public DateTime? DeletedDate { get; set; }
    public ICollection<LocationStartCode> StartCodes { get; set; } = new List<LocationStartCode>();
    public int ExternalId { get; set; }

Where LocationData is een json string
See config

    public void Configure(EntityTypeBuilder<Location> builder)
    {
        builder.HasIndex(x => x.ExternalId).IsUnique();
        builder.Property(e => e.Data).HasConversion(
            v => JsonSerializer.Serialize(v, JsonSerializerOptions),
            v => JsonSerializer.Deserialize<LocationData>(v, (JsonSerializerOptions?)null)!); 
        builder.Property(x => x.Data).Metadata.SetValueComparerJson<LocationData>();
        builder.Property(x => x.Data).HasDefaultValueSql("'{}'");
    }