[gtk+] wayland: Unset the source-side DnD fd after passing it to the stream

[Carlos Garnacho <carlosg src gnome org>]

commit ec2257e53c618c2e33b1e77aa62b6dd24a107c21
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Mar 9 17:25:33 2016 +0100

    wayland: Unset the source-side DnD fd after passing it to the stream
    
    The ownership is given to the stream, so unset it here.

 gdk/wayland/gdkselection-wayland.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gdk/wayland/gdkselection-wayland.c b/gdk/wayland/gdkselection-wayland.c
index 30f3546..1826bb2 100644
--- a/gdk/wayland/gdkselection-wayland.c
+++ b/gdk/wayland/gdkselection-wayland.c
@@ -597,6 +597,8 @@ async_write_data_new (GdkWaylandSelection *selection)
   write_data->stream =
     g_unix_output_stream_new (selection->stored_selection.fd, TRUE);
 
+  selection->stored_selection.fd = -1;
+
   return write_data;
 }