问MongoWriteException: InsertOne将MongoDB.Driver.MongoBulkWriteException作为内部异常

EN

原始例外：

MyMicroServiceMigrator.Services.MainBackgroundService失败：

写入操作导致错误。WriteError：{DuplicateKey，代码: 11000，消息："E11000重复密钥收集: VrcProd.mycollection索引: id键：{ _id: ObjectId('62d70fb8e12940a8ab7527d6') }“}。

内部例外：

MongoDB.Driver.MongoBulkWriteException1[Models.VRC.Collections.MyCollection]: A bulk write operation resulted in one or more errors. WriteErrors: [ { Category : "DuplicateKey", Code : 11000, Message : "E11000 duplicate key error collection: VrcProd.mycollection index: _id_ dup key: { _id: ObjectId('62d70fb8e12940a8ab7527d6') }" } ]. at MongoDB.Driver.MongoCollectionImpl1.BulkWrite(IClientSessionHandle会话，IEnumerable1 requests, BulkWriteOptions options, CancellationToken cancellationToken) at MongoDB.Driver.MongoCollectionImpl1.<>c__DisplayClass28_0.b__0(IClientSessionHandle会话( MongoDB.Driver.MongoCollectionImpl1.UsingImplicitSession[TResult](Func2 func )，MongoDB.Driver.MongoCollectionImpl1.BulkWrite(IEnumerable1请求( CancellationToken cancellationToken)，MongoDB.Driver.MongoCollectionBase1.<>c__DisplayClass68_0.<InsertOne>b__0(IEnumerable1请求( BulkWriteOptions options，CancellationToken cancellationToken)，MongoDB.Driver.MongoCollectionBase1.InsertOne(TDocument document, InsertOneOptions options, Action2 bulkWrite( BulkWriteOptions bulkWriteOptions) )

所以问题是为什么在调用MongoBulkWriteException时会有InsertOne作为内部异常？

向上插入方法：

    public void Upsert<T>(T entity, bool newEntity = false) where T : IMongoEntityVRC
    {
        try
        {
            if (newEntity)
            {
                this.Insert(entity);
            }
            else
            {
                this.FindAndUpdate(entity);
            }
        } catch (MongoWriteException e) when (ExceptionUtils.GetErrorCode(e) == DuplicateKeyCode)
        {
            throw new EntityUniqueConstraintViolationException(e.Message);
        }
    }

我不会发布调用者方法的全部代码，因为它不相关。但是，从一种类型(类型A)映射到新类型(B类型)非常简单。

   // pseudo code of the caller method:
   foreach (var item in items)
   {
      // find existing
      var myEntity = FindmyEntity(item.id);
      // map the object of the new type from this entity
      var mappedEntity = CreateEntity(myEntity ?? new MappedEntity(), myEntity);
      // upsert or insert depending if existing entity was found
      Upsert(entity, myEntity is null);
   }

现在我的问题是，我打电话给MongoBulkWriteException时，为什么要得到InsertOne，这没有任何意义.