mac-capture: update owner_pid in `update_window`

plugins/mac-capture/window-utils.m

@@ -136,6 +136,7 @@ void update_window(cocoa_window_t cw, obs_data_t *settings)
 	[cw->window_name retain];
 	pthread_mutex_unlock(&cw->name_lock);
 
+	cw->owner_pid = obs_data_get_int(settings, "owner_pid");
 	cw->window_id = obs_data_get_int(settings, "window");
 }