Add try block to catch anonymous clients that were cleared from the D…

…B. (#3)

apigateway/views.py

@@ -16,7 +16,7 @@
 from werkzeug.security import gen_salt
 
 from apigateway import email_templates as templates
-from apigateway import extensions, schemas
+from apigateway import extensions, schemas, exceptions
 from apigateway.models import (
     EmailChangeRequest,
     OAuth2Client,
@@ -65,8 +65,11 @@ def get(self):
                 client_id = current_token.client.client_id
 
             if client_id:
-                client, token = extensions.auth_service.load_client(client_id)
-
+                try:
+                    client, token = extensions.auth_service.load_client(client_id)
+                except exceptions.NoClientError:
+                    client, token = extensions.auth_service.bootstrap_anonymous_user()
+                    session["oauth_client"] = client.client_id
             # Check if the client_id is valid and that there is no client/user mismatch
             if not client_id or (
                 client.user_id != current_user.get_id()