NoBulkWriteResult passes null into base type

[johnknoop]

2020-01-20 19:10:09 ERR [] An unhandled exception has occurred while executing the request.
{"EventId": {"Id": 1, "Name": "UnhandledException"}, "SourceContext": "Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware", "RequestId": "0HLSTO070TBGB:00000001", "RequestPath": "/api/bulk-create-items", "SpanId": "|d221874-42232fcff5fd61c6.", "TraceId": "d221874-42232fcff5fd61c6", "ParentId": "", "ConnectionId": "0HLSTO070TBGB"}
System.ArgumentNullException: Value cannot be null. (Parameter 'source')
   at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at MongoDB.Driver.BulkWriteResult`1..ctor(Int32 requestCount, IEnumerable`1 processedRequests)
   at JohnKnoop.MongoRepository.NoBulkWriteResult`1..ctor()
   at JohnKnoop.MongoRepository.MongoRepository`1.UpdateOneBulkAsync[TDerived](IEnumerable`1 commands)