Add some recovery attempts for race condition of missing status invalidation.

fear_tracker/views.py

@@ -158,6 +158,12 @@ def game_status_object(game, current_phase=None, players_with_fear=None):
     status_hash = h.hexdigest()
     status_obj['hash'] = status_hash
 
+    async_to_sync(get_channel_layer().group_send)(
+            "%s_status" % game.access_code, {
+                "type": "fear_tracker.hashcode_seen",
+                "hashcode": status_hash,
+            })
+
     return status_obj
 
 
@@ -343,6 +349,11 @@ class StatusLongPollConsumer(AsyncHttpConsumer):
 
         await self.channel_layer.group_add("%s_status" % self.access_code,
                                            self.channel_name)
+        await self.channel_layer.group_send(
+                "%s_status" % self.access_code, {
+                    "type": "fear_tracker.hashcode_seen",
+                    "hashcode": self.hashcode,
+                })
 
     async def http_request(self, message):
         """
@@ -358,6 +369,13 @@ class StatusLongPollConsumer(AsyncHttpConsumer):
         await self.channel_layer.group_discard("%s_status" % self.access_code,
                                                self.channel_name)
 
+    async def fear_tracker_hashcode_seen(self, event):
+        if self.hashcode != event["hashcode"]:
+            await self.channel_layer.group_send(
+                    "%s_status" % self.access_code, {
+                        "type": "fear_tracker.invalidate_status",
+                    })
+
     async def fear_tracker_invalidate_status(self, event):
         no_hash_status = reverse('status',
                                  kwargs={'access_code': self.access_code})