ServiceNow Discovery keeps creating duplicate normalized hardware models

[Tad]

A normalized hardware model (Dell Inc. Precision 5000 Series 5540) is defined and a list of CIs created with this model. Discovery = ServiceNow finds an existing CI defined to this model and creates another normalized hardware model with the same name and moves this CI to this new model.  Now there is a new duplicate normalized hardware model name with 1 CI.  

                           Manufacturer               Name                                         Model Number

Existing Model     Dell Technologies        Precision Mobile Workstation     5540
New Model           Dell Inc.                      Precision 5540

Of course both models Normalize to the same name.

This a real issue!  How can models be managed if Discovery keeps creating new ones?  How can this be prevented?  The understanding is with ServiceNow HAM and Content Service that all identical CIs would be created with only one model.

[AmolJ]

I am having similar issue with Intune connector. There is already a normalized model but yet it creates a new model that is not normalized and assigns CIs to it. Crazy.