memleak in gtk_window_export_handle on X
From gtk_window_export_handle():
GdkWindow *gdk_window = gtk_widget_get_window (GTK_WIDGET (window));
char *handle_str;
guint32 xid = (guint32) gdk_x11_window_get_xid (gdk_window);
handle_str = g_strdup_printf ("x11:%x", xid);
callback (window, handle_str, user_data);
return TRUE;
The handle_str is leaking (both on master and 3-22)