[gtk+] places sidebar: Fix rows getting 'lost' when dnd fails

[Matthias Clasen <matthiasc src gnome org>]

commit 8e53a011885adc749dc67e3553f21f9fbe4404e3
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jul 7 23:16:09 2015 -0400

    places sidebar: Fix rows getting 'lost' when dnd fails
    
    There was some code that lead to the places sidebar loosing track
    of the row being dragged if a motion event came in between letting
    go of the button and the drag snap-back animation ending. This would
    cause us to not show the row again, giving the appearance that it
    was 'lost'.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=751448

 gtk/gtkplacessidebar.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index a591ea5..322b7f1 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -1456,11 +1456,7 @@ on_motion_notify_event (GtkWidget      *widget,
     return FALSE;
 
   if (!(event->state & GDK_BUTTON1_MASK))
-    {
-      sidebar->drag_row = NULL;
-
-      return FALSE;
-    }
+    return FALSE;
 
   if (gtk_drag_check_threshold (widget,
                                 sidebar->drag_root_x, sidebar->drag_root_y,