---
fixes:
  - |
    Added support for deleting volume image property.

    Image properties are copied from image when volume is created.
    But since a volume is mutable, user sometime wants to delete
    image properties for volume.

    So, this fix enables user to delete image properties of volume
    using below command:
    ``volume unset  [--image-property <key>] <volume>``.

    [Bug 'https://bugs.launchpad.net/python-openstackclient/+bug/1554879'_]