Set di upgrades/<nome>/scheduled a True non cambia il valore di scheduled

Lo riproduco cosí:

$ ./run_client http://localhost:13400/conf/ -u root
Password: 
Welcome to the octofussd client.  Queries are sent to http://localhost:13400/conf/
/> cd upgrades/Upgrade n. 3
/upgrades/Upgrade n. 3> get scheduled
None
/upgrades/Upgrade n. 3> set scheduled True
/upgrades/Upgrade n. 3> get scheduled
None
/upgrades/Upgrade n. 3>