horizon can't manage volume

[Sergei Chipiga]

MOS build:
cat /etc/fuel_build_id:
 452
cat /etc/fuel_build_number:
 452
cat /etc/fuel_release:
 9.0
cat /etc/fuel_openstack_version:
 mitaka-9.0

deploy config:
Cinder LVM over iSCSI for volumes
1 node - controller; 2 nodes - compute, cinder

Steps:
- Login as admin
- Create volume
- Remember host, name and ID of volume
- Go to Admin -> System -> Volumes
- Click dropdown menu and select "Unmanage volume"
- Click "manage volume" button
- fill fields:
    Identifier: prefix "volume-" + volume ID (prefix presence is discussed in https://bugs.launchpad.net/mos/+bug/1588791)
    Identifier Type: ID
    Host: volume host
- click button "Manage"

Expected result:
- volume will be available again

Actual result:
- volume has status "error"

but if I execute with cli, for ex.:
root@node-3:~# cinder manage node-5.test.domain.local@LVM-backend#LVM-backend volume-9e0264d0-d7ab-4f41-a8af-0010d0bfd1c4

then volume will be managed and available

with horizon manage volume form, I tried different identifier variants:
- "volume-" + volume ID
- volume ID
- "volume-" + volume name
- volume name
But anyway it creates volume with "error status"

P.S. At ceph can't test that due to bug:
https://bugs.launchpad.net/mos/+bug/1592029