GET a list of user privileges granted on a repository

This call is not working. I am making the following request:

**https://api.bitbucket.org/1.0/privileges/latinojoel/assar-chouricas/R_Peres\\
**
I know that I have permissions (admin) on the repository, but It will only return:

[] (empty array)

Another example, If I try to get my privileges like this:

https://api.bitbucket.org/1.0/privileges/r_peres

(meanwhile it was changed)

Although I have read permission on the same repo (assar-chouricas) it won't show me that on the list.