fuel-ui collisions if there keys with same names in diferent sections.

Description of the environment.
Custom FUEL ISO with additional settings group in openstack.yaml. That group includes username and password field. For example:
      editable:
        vcenter:
          user:
            value: "admin"
            label: "username"
            description: "vCenter Username"
            weight: 20
            type: "text"
          password:
            value: "admin"
            label: "password"
            description: "vCenter Password"
            weight: 30
            type: "password"

{"ostf_sha": "16198b380883a722e0ee43f6dfdda187a9a1b2a7", "fuelmain_sha": "fe157dcc0c68a237b527cb9b6adf9101c815e374", "astute_sha": "f15f5615249c59c826ea05d26707f062c88db32a", "release": "4.1", "nailgun_sha": "afa3d34719363a14a790a7e7c6c2fb0b6f3ae9fc", "fuellib_sha": "f1ee2b6a48fd7ed8db2fe9ece6f0655aec8af8d0", "mirantis": "no"}
CentOS
HA and non-HA
1 node in deploy
3 NICs
no RAID

Steps to reproduce:
1. Create new cluster with all default settings.
2. click settings tab.
3. change value in username field in vCenter group.
4. click save.
Expected result:
All values remain unchanged at browser page.
Actual result:
All values saves normally but at browser page username field value in section Access changes to value of username field in vCenter group.
Workaround:
Do not use field with same name in different groups.
Impact:
deployment completes normaly and without mixing values.