[geary: 7/7] Merge branch 'mjog/draft-errors' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit a21982ae42868c9ced43e92d4b3be97a6d5f3a1c
Merge: af980e20e 5533ae323
Author: Michael Gratton <mike vee net>
Date:   Thu Nov 5 08:14:32 2020 +0000

    Merge branch 'mjog/draft-errors' into 'mainline'
    
    Misc draft management issues
    
    Closes #858 and #1044
    
    See merge request GNOME/geary!613

 .../application/application-plugin-manager.vala    | 14 +---
 src/client/composer/composer-widget.vala           | 96 +++++++++++++++-------
 src/engine/app/app-draft-manager.vala              | 13 ++-
 src/engine/imap/api/imap-folder-session.vala       |  4 +-
 4 files changed, 79 insertions(+), 48 deletions(-)
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