In course of normal operation, the backend snapshot
name is associated with the the ID of the snapshot instance
in manila.
However, when a share is replicated or is being migrated,
the backend snapshot is not renamed. Instead, we simply
store the original name in the "provider_location" field of
the snapshot model.
Fix revert-to-snapshot methods to identify snapshots by
"provider_location"s rather than the instance IDs.
Co-Authored-By: Goutham Pacha Ravi <gouthampravi@gmail.com>
Change-Id: I4900c7aecc3da6640ea9c0d4d08012ff5b68cc58
Closes-Bug: #1694768
(cherry picked from commit bd47f93007)
038eb7be4f