Salt grains.setval doesn't allow the use of the character 'h'

cli output

# grains.setval hates the letter h.  If an h is specified, salt will only use it.
# Setting the grain in /etc/salt/grains on the minion and restarting the minion does allow the 'h' to be specified and used

$ salt minion.domain.tld grains.setval application [foo,bar]
minion.domain.tld:
  application:
      foo
      bar
$ salt minion.domain.tld grains.setval application [Sentinel,Saltdashboard]
minion.domain.tld:
  application: h
  


$ salt minion.domain.tld grains.setval application [Sentinel,saltboard]
minion.domain.tld:
  application:
      Sentinel
      saltboard
$ salt minion.domain.tld grains.setval application [Sentinel,saltdashboard]
minion.domain.tld:
  application: h
$ salt minion.domain.tld grains.setval application [Sentinel,saltdasboard]
minion.domain.tld:
  application:
      Sentinel
      saltdasboard

logs

2014-07-16 09:18:16,384 [salt.minion      ][INFO    ] User jeremy.alons Executing command grains.setval with jid 20140716091816360040
2014-07-16 09:18:16,386 [salt.minion      ][DEBUG   ] Command details {'tgt_type': 'glob', 'jid': '20140716091816360040', 'tgt': 'minion.domain.tld', 'ret': 'mongo', 'user': 'jeremy.alons', 'arg': ['application', 'h'], 'fun': 'grains.setval'}
2014-07-16 09:18:25,524 [salt.minion      ][INFO    ] User jeremy.alons Executing command grains.setval with jid 20140716091825502754
2014-07-16 09:18:25,526 [salt.minion      ][DEBUG   ] Command details {'tgt_type': 'glob', 'jid': '20140716091825502754', 'tgt': 'minion.domain.tld', 'ret': 'mongo', 'user': 'jeremy.alons', 'arg': ['application', '[Sentinel,saltdasboard]'], 'fun': 'grains.setval'}