Fix requiring an extra restart after recent post-deployment migrations (#17422)

Follow-up to #16409

app/models/user.rb

@@ -45,6 +45,8 @@ class User < ApplicationRecord
   self.ignored_columns = %w(
     remember_created_at
     remember_token
+    current_sign_in_ip
+    last_sign_in_ip
   )
 
   include Settings::Extend