old_contents: from django.db import migrations
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ("zerver", "0098_index_has_alert_word_user_messages"),
      ]
  
      operations = [
          migrations.RunSQL(
              """
              CREATE INDEX IF NOT EXISTS zerver_usermessage_wildcard_mentioned_message_id
                  ON zerver_usermessage (user_profile_id, message_id)
                  WHERE (flags & 8) != 0 OR (flags & 16) != 0;
              """,
              reverse_sql="DROP INDEX zerver_usermessage_wilcard_mentioned_message_id;",
          ),
      ]
  
new_contents: from django.db import migrations
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ("zerver", "0098_index_has_alert_word_user_messages"),
      ]
  
      operations = [
          migrations.RunSQL(
              """
              CREATE INDEX IF NOT EXISTS zerver_usermessage_wildcard_mentioned_message_id
                  ON zerver_usermessage (user_profile_id, message_id)
                  WHERE (flags & 8) != 0 OR (flags & 16) != 0;
              """,
              reverse_sql="DROP INDEX zerver_usermessage_wildcard_mentioned_message_id;",
          ),
      ]
  
subject: Fix typo in 0099 reverse_sql.