[horizon] duplicated floating network

[vnaumov]

Fuel 9.0 -> 9.1 -> 9.2, Contrail 5.0.0(updated to 5.0.1), LDAP 3.0.0 [1]

Steps to reproduce:
  1. Deploy 9.0 env + contrail plugin (9 slaves) [2]
  2. Install and configure LDAP
  3. Reset env (to activate ldap)
  4. Deploy changes
  5. Update to 9.1 state master node [3]
  6. Add mos-updates
"deb http://mirror.fuel-infra.org/mos-repos/ubuntu/9.0/ mos9.0-updates main restricted"
     into Settings -> General on Fuel UI
  7. Run `fuel2 update --env {env_id} install --repos mos-updates --restart-rabbit --restart-mysql` on master Node
  8. Deploy changes
  9. scp contrail-5.0-5.0.1-1-5.noarch.rpm root@10.109.0.2:/tmp
  10. fuel plugins --update /tmp/contrail-5.0-5.0.1-1-5.noarch.rpm (as a workaround to bug [4])
  11. run ostf
  12. check networks
  13. enter in domain openldap1 (user01:1111)
Expected results:

admin net configured
floating net configured

Actual result:
floating net1 configured
floating net2 configured (duplicated)

installed plugins: Contrail 5.0.0(updated to 5.0.1), LDAP 3.0.0
link to diagnostic snapshot: [5]

[1] http://plugins.mirantis.com/repository/l/d/ldap/ldap-3.0-3.0.0-1.noarch.rpm
[2] CI: http://jenkins-tpi.bud.mirantis.net:8080/view/9.0-custom/job/9.0.contrail.5.0.0.custom.dev/8/console
[3] http://docs.openstack.org/developer/fuel-docs/userdocs/fuel-install-guide/update-fuel.html#update-fuel
[4]https://bugs.launchpad.net/fuel/+bug/1658652
[5]https://drive.google.com/open?id=0B-AO_niPlWzFZW9uYVBGUUhoTDA

[Illia Polliul (ipolliul)]

This bug looks to be isolated to Horizon. In neutron net-list or neutron subnet-list there's no duplicates.

Also, checkbox in Horizon misbehaves like this: https://drive.google.com/file/d/0BzdcP1_NuusEOWlpR2NuOUJveFE/view?usp=sharing