[gtk: 6/6] Merge branch 'dnd-fixes' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit 6a29b648505b67f8a5ffc45e636d7b2b6b7fa932
Merge: 73cb60d053 1cebf406aa
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jun 24 15:01:29 2021 +0000

    Merge branch 'dnd-fixes' into 'master'
    
    dnd: Add another assertion
    
    See merge request GNOME/gtk!3689

 demos/gtk-demo/peg_solitaire.c      |  4 +--
 docs/reference/gtk/drag-and-drop.md | 54 +++++++++++++++++++++++++++++++++++++
 docs/reference/gtk/gtk4.toml.in     |  1 +
 gdk/gdkdrop.c                       |  9 ++++---
 gdk/wayland/gdkdrag-wayland.c       |  2 ++
 gtk/gtkdragicon.c                   |  2 +-
 gtk/gtkdroptarget.c                 |  2 +-
 7 files changed, 67 insertions(+), 7 deletions(-)
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