[geary: 2/2] Merge branch 'mjog/crash-sending-multipart' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit 175333176e57a5d85f2e0a494ec67cede09c705b
Merge: 6424b66b5 ec4c6d398
Author: Michael Gratton <mike vee net>
Date:   Mon Aug 3 10:58:03 2020 +0000

    Merge branch 'mjog/crash-sending-multipart' into 'mainline'
    
    Fix mainline crash sending multipart messages
    
    See merge request GNOME/geary!535

 src/engine/rfc822/rfc822-message.vala       | 24 +++++++++++--
 test/engine/api/geary-email-test.vala       | 52 +++++++++++++++++++++++++++++
 test/engine/rfc822/rfc822-message-test.vala | 30 +++++++++++++++--
 test/meson.build                            |  3 +-
 test/test-engine.vala                       |  1 +
 5 files changed, 103 insertions(+), 7 deletions(-)
---