I am in Odoo 12 as an admin user and I want to restrict a user from access to a specific view of a model. For example, I'm going to restrict user named Sina to see a tree view of res.partner model. I went to Technical Settings > User Interface > Views and find the view named "res.partner.tree". Then in the "Access Rights" tab added a group which user Sina is a member of that.
But this restriction doesn't work and when I login by Sina I can see any view I want.
What is the problem?