Problem with TREATAS

Hey there. Here's the file link.

I've been trying to run what should be an easy calculation, however I can not understand what I'm doing wrong. Basically, I'm trying to use TREATAS to propagate the virtual d_resellers[id_reseller] → d_clients[id_reseller] relationship. Of course, by simply using a physical one would be the best option, however I'm learning the TREATAS function, and thus why I have not chose to use the physical relationship.

The formula is as follows:

EVALUATE
VAR _resellers = 
	DISTINCT ( d_resellers[id_reseller] )
VAR _propagation =
	TREATAS ( _resellers, d_clients[id_reseller] )
VAR _result =
	ADDCOLUMNS (
		_affiliates,
		"@", 
			CALCULATE (
				COUNTROWS ( d_clients ),
				KEEPFILTERS ( _propagation )
			)
	)
RETURN
	_result

Note that 7, in the [@] column, is the correct result, but it should be properly assigned to the numbers 8 and 10 for the [id_reseller] column.

The correct result should be:

This is the data model:

What am I doing wrong?

Thanks in advance.