ensure post registration auth checks do not fail erroneously

1 files changed, 4 insertions, 0 deletions

diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py

index 45113e5386..f22b7577ea 100644
--- a/synapse/rest/client/v2_alpha/register.py
+++ b/synapse/rest/client/v2_alpha/register.py
@@ -406,6 +406,10 @@ class RegisterRestServlet(RestServlet):
                 generate_token=False,
                 threepid=threepid,
             )
+            # Necessary due to auth checks prior to the threepid being
+            # written to the db
+            if self.store.is_threepid_reserved(threepid):
+                self.store.upsert_monthly_active_user(registered_user_id)
 
             # remember that we've now registered that user account, and with
             #  what user ID (since the user may not have specified)