Comment # 2 on bug 1130392 from Jos� Iv�n L�pez Gonz�lez

Yes, after disabling a volume feature (snapshots, adjust_by_ram, or the volume
itself) the disabled feature is never restored. Good catch!

Definitely,
[`Yast.deep_copy`](https://github.com/yast/yast-storage-ng/blob/master/src/lib/y2storage/initial_guided_proposal.rb#L41)
does not work as I expected. The `VolumeSpecification` objects from
`settings.volumes` need to be duplicated wherever the setting are copied.