I found the Rule "res_partner: read access on my partner" for the trunk is not the same as stable 7.0.
The trunk rule Definition: [('id', 'child_of', user.commercial_partner_id.id)]
The stable 7.0 rule Definition: [('user_ids', 'in', user.id)]
I copy the rule from trunk to stable 7.0, and it work well.
I found the Rule "res_partner: read access on my partner" for the trunk is not the same as stable 7.0.
The trunk rule Definition: [('id', 'child_of', user.commercial _partner_ id.id)]
The stable 7.0 rule Definition: [('user_ids', 'in', user.id)]
I copy the rule from trunk to stable 7.0, and it work well.