This patch addresses the scenario where an
incremental backup can be created having a
parent backup that was taken in a different
project. This scenario ultimately leads to
a silent error when creating/deleting the
incremental backup and quotas going out of
sync.
The proposed fix is to narrow the backup search
down to the same project. To achieve this, a
method's signature had to be updated to achieve
the desired optimized behavior of passing the
volume's project_id parameter.
Closes-bug: #1869746
Closes-bug: #1873518
Change-Id: Icb621ff5966133f59d9d43ca2dd9f8e1919b1149