[Using Z.EntityFramework.Extensions.EFCore 9.103.9.3]

When using the following code fragment to insert data into multiple tables:

    var result = await _dbContext.BulkInsertOptimizedAsync(data);
    _logger.LogInformation("IsOptimized: {IsOptimized}, Tips: {Tips}", result.IsOptimized, result.TipsText);

we see many log lines where the query result is reporting "IsOptimized: true", but for one particular table it results in the following exception on the _logger.LogInformation line:

System.InvalidOperationException: Nullable object must have a value.
   at System.Nullable`1.get_Value()
   at Z.EntityFramework.Extensions.BulkOptimizedAnalysis.get_IsOptimized()
   (...)

This is what I see in the debugger when I inspect the result value:

I'm unsure what kind of obfuscation is going on here, but it's even more mysterious how a non-nullable boolean can throw this specific exception.