The field "Attached File Count" is not autoincremented in the resquest "Reporting Revisions Get" of the Azure DevOps Services REST API -> "Work Item Tracking"

Question

The issue is that "System.AttachedFileCount" is not incremented for 8th revision. It should be 2 and not 0.

As you can see below there are indeed 2 attached files to the Work Item :

And there are 8 revisions :

Please, how can we fix this ? Maybe the tracking of System.AttachedFileCount is not handle by the API because if we use the field in a query it works as u can see below :