--- a/ui/cocoa/window.m Wed Jul 13 16:40:59 2016 +0200
+++ b/ui/cocoa/window.m Sat Sep 17 19:32:44 2016 +0200
@@ -186,6 +186,7 @@
obj->widget = (NSView*)window;
obj->window = window_data;
+ obj->document = NULL;
obj->container = ui_window_container(obj, window);