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-rw-r--r--synapse/handlers/device.py11
1 files changed, 10 insertions, 1 deletions
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
index 89864e1119..0640ea79a0 100644
--- a/synapse/handlers/device.py
+++ b/synapse/handlers/device.py
@@ -346,6 +346,7 @@ class DeviceHandler(DeviceWorkerHandler):
         super().__init__(hs)
 
         self.federation_sender = hs.get_federation_sender()
+        self._account_data_handler = hs.get_account_data_handler()
         self._storage_controllers = hs.get_storage_controllers()
 
         self.device_list_updater = DeviceListUpdater(hs, self)
@@ -502,7 +503,7 @@ class DeviceHandler(DeviceWorkerHandler):
             else:
                 raise
 
-        # Delete access tokens and e2e keys for each device. Not optimised as it is not
+        # Delete data specific to each device. Not optimised as it is not
         # considered as part of a critical path.
         for device_id in device_ids:
             await self._auth_handler.delete_access_tokens_for_user(
@@ -512,6 +513,14 @@ class DeviceHandler(DeviceWorkerHandler):
                 user_id=user_id, device_id=device_id
             )
 
+            if self.hs.config.experimental.msc3890_enabled:
+                # Remove any local notification settings for this device in accordance
+                # with MSC3890.
+                await self._account_data_handler.remove_account_data_for_user(
+                    user_id,
+                    f"org.matrix.msc3890.local_notification_settings.{device_id}",
+                )
+
         await self.notify_device_update(user_id, device_ids)
 
     async def update_device(self, user_id: str, device_id: str, content: dict) -> None: