Volume Type 'View Extra Specs' overrides existing key value

[Vishal Manchanda]

When User create a new spec using 'View Extra Spec' with an existing key name under Volume Type panel, the
existing spec will be overridden.In the cinder API, the behavior
is "set" so it is not surprising to override an existing spec.However, in the horizon implementation, "Create" and "Edit" are used.So We it is better to suggest "Edit" when a specified key
already exists in the "Create" spec form.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/641385

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/641385
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=a85687cb7ee4563dfb9e3c3c57c6c4e2c400bb56
Submitter: Zuul
Branch: master

commit a85687cb7ee4563dfb9e3c3c57c6c4e2c400bb56
Author: manchandavishal <email address hidden>
Date: Wed Mar 6 14:04:34 2019 +0000

    Add Validation msg in Create Extra Spec Form under Volume Type Panel

    This patch add a validation message when a user try to 'Create'
    a extra spec with an existing key name under Volume Type panel.

    Change-Id: I6a1eac269e616ba0861a41eda5eac1b1a4cdd1d0
    Closes-Bug: #1818826

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 15.0.0.0rc1 release candidate.