When the user creates the model training, `createdAt` and `updatedAt` have very tiny difference but should be the same

[BPylypenko]

Description When the user creates the model training, createdAt and updatedAt have very tiny difference but should be the same.

Other related entities:

• Model Training
• Model Packaging
• Batch Inference Service
• Batch Inference Job

Steps to Reproduce

1. Go to the Swagger API: (<odahu-cluster-name>/swagger/index.html#/Training/)
2. Make POST request.
3. Notice that createdAt and updatedAt values have tiny difference.
4. Make GET request for the training from step (2).
5. Notice that createdAt and updatedAt values are shorter than from step (3).

Specification: model-training-specification.txt

Actual result The createdAt and updatedAt fields have different values after creation of entity. And POST request returns longer values than GET request.

Expected result The createdAt and updatedAt values are the same. And GET request returns the same as POST request.

Attachments POST request:

GET request after POST:

Environment:

• ODAHU version: 1.6.0