[geary: 2/2] Merge branch 'mjog/fix-null-id-saving-drafts' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit 0126764fe9a1752f8e4df2a2d9f0302567751fdd
Merge: 509cfa86 7ddeb8d7
Author: Michael Gratton <mike vee net>
Date:   Sat Sep 28 11:21:29 2019 +0000

    Merge branch 'mjog/fix-null-id-saving-drafts' into 'mainline'
    
    Fix an assertion failing when saving a draft for the first time
    
    See merge request GNOME/geary!318

 src/engine/app/app-draft-manager.vala | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)
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