olm: Mark one time keys as published and store the account.

matrix/encryption.py

@@ -199,3 +199,7 @@ class Olm():
         ))
 
         return signature
+
+    @encrypt_enabled
+    def mark_keys_as_published(self):
+        self.account.mark_keys_as_published()

matrix/events.py

@@ -74,6 +74,9 @@ class MatrixKeyUploadEvent(MatrixEvent):
         MatrixEvent.__init__(self, server)
 
     def execute(self):
+        self.server.olm.mark_keys_as_published()
+        self.server.store_olm()
+
         if not self.device_keys:
             return