USERELATIONSHIP doesn't deactivate the active relationship

Hi,

When I use the DAX function USERELATIONSHIPS it doesn't acts as the documentation says and it keeps using the active relationship instead of the indicated by the function.

I made this simple model to replicate the issue:

I want to count rows in the "Documents" table by Parcial using the inactive many to many relationship which uses shipmentOid as a key.

The DAX measure I'm using is:

Docs shipment = 
CALCULATE(
    COUNTROWS(Documents),
    USERELATIONSHIP('13'[shipmentOid],Documents[shipmentOid])
)

But the result is the one obtained by using the active relationship between tables "Parciales" and "Documents" (which is different from that using the relation between the inactive relationship).

I made the same measure without USERELATIONSHIP to compare:

Docs parcial = COUNTROWS(Documents)

and the results are identical:

If I manually deactivate the relationship between "Parciales" and "Documents" tables the function using USERELATIONSHIP works fine.
How can I deactivete the active relationship and ONLY USE the one indicated by USERELATIONSHIP?

This is the file if you want to check it: https://uniontecolog-my.sharepoint.com/:u:/g/personal/jreyesv_ecolog_com_co/EeQXlksluedAqoQos-K4snMBrk7b5q0q2SYh-631SfwWHw?e=Qxn116