[geary/mainline: 6/6] Merge branch 'wip/289-folder-not-fully-populated' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit dc656d7aad33205336a0d2260f8d6527e93b12d8
Merge: bb8123eb df80569b
Author: Michael Gratton <mike vee net>
Date:   Sun Apr 7 00:20:18 2019 +0000

    Merge branch 'wip/289-folder-not-fully-populated' into 'mainline'
    
    Fix ConversationMonitor sometimes not loading more from remote
    
    See #289
    
    See merge request GNOME/geary!195

 src/client/application/geary-controller.vala       |  9 +++--
 .../conversation-list/conversation-list-view.vala  | 46 +++++++++-------------
 src/engine/app/app-conversation-monitor.vala       | 29 +++++++++++---
 .../app-fill-window-operation.vala                 | 10 +++--
 .../conversation-monitor/app-insert-operation.vala |  3 --
 .../conversation-monitor/app-remove-operation.vala |  6 ---
 src/engine/imap-db/imap-db-folder.vala             | 29 ++++++++------
 .../imap-engine/imap-engine-generic-account.vala   |  4 +-
 test/engine/api/geary-folder-mock.vala             |  2 +-
 test/engine/api/geary-folder-properties-mock.vala  | 24 +++++++++++
 test/engine/app/app-conversation-monitor-test.vala |  3 --
 test/meson.build                                   |  1 +
 12 files changed, 100 insertions(+), 66 deletions(-)
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