plugin set two controller's for integration bridge

In my two node openstack setup, when i try to connect my compute node ovsdb instance to controller, i see that controller sets two controller value for the integration bridge. I can easily recreate this issue, after 2-3 attempts.

root@ComputeNode:~/openstack-setup# ovs-vsctl show
4575bb26-b73b-4e0a-a62a-9b3ff06e19af
Manager "tcp:192.168.57.1:6640"
is_connected: true
Bridge br-int
Controller "tcp:192.168.57.1:6633"
is_connected: true
Controller "tcp:192.168.57.1:6633"
is_connected: true
fail_mode: secure
Port br-int
Interface br-int
ovs_version: "2.0.2"