Comment 3 for bug 1958307

Reviewed: https://review.opendev.org/c/openstack/blazar/+/828745
Committed: https://opendev.org/openstack/blazar/commit/d20932fd98fefaf76b31e201e3e49dfe0a14e5b9
Submitter: "Zuul (22348)"
Branch: stable/xena

commit d20932fd98fefaf76b31e201e3e49dfe0a14e5b9
Author: Pierre Riteau <email address hidden>
Date: Tue Jan 18 23:21:43 2022 +0100

    Fix list_allocations for multi-host reservations

    The get_reservation_allocations_by_host_ids function builds an
    allocation dictionary that looks like this:

        allocations = {
            'r1': ['host1'],
            'r2': ['host1', 'host2']
        }

    The list returned by this function was only using the first host of each
    reservation:

        allocations[r['id']][0]

    Loop over hosts to build the list of (reservation, lease, host) tuples.

    Change-Id: I55b3cb4e736f6f747c8b3254c62fa40bac3f288f
    Closes-Bug: #1958307
    (cherry picked from commit 39c67f09b8095c4d8aadfe550f0aa924a3693f5a)