The CpuFlag class in bkr.server.needpropertyxml has two typos which prevent the use of <cpu><flag/></cpu> (or <cpu_flag/>) in hostRequires.

Traceback (most recent call last):
  File "/home/dcallagh/work/beaker/IntegrationTests/src/bkr/inttest/server/test_model.py", line 949, in test_cpu_flags
    """))
  File "/home/dcallagh/work/beaker/Server/bkr/server/model.py", line 3045, in systems_filter
    systems = apply_system_filter(filter, systems)
  File "/home/dcallagh/work/beaker/Server/bkr/server/needpropertyxml.py", line 907, in apply_system_filter
    (query, clause) = child.filter(query)
  File "/home/dcallagh/work/beaker/Server/bkr/server/needpropertyxml.py", line 105, in filter
    (joins, query) = child.filter(joins)
  File "/home/dcallagh/work/beaker/Server/bkr/server/needpropertyxml.py", line 725, in filter
    value = self.get_xml_attr('value', int, None)
  File "/home/dcallagh/work/beaker/Server/bkr/server/needpropertyxml.py", line 81, in get_xml_attr
    return typeCast(attributes[attr])
ValueError: invalid literal for int() with base 10: 'vmx'

Traceback (most recent call last):
  File "/home/dcallagh/work/beaker/IntegrationTests/src/bkr/inttest/server/test_model.py", line 949, in test_cpu_flags
    """))
  File "/home/dcallagh/work/beaker/Server/bkr/server/model.py", line 3045, in systems_filter
    systems = apply_system_filter(filter, systems)
  File "/home/dcallagh/work/beaker/Server/bkr/server/needpropertyxml.py", line 907, in apply_system_filter
    (query, clause) = child.filter(query)
  File "/home/dcallagh/work/beaker/Server/bkr/server/needpropertyxml.py", line 105, in filter
    (joins, query) = child.filter(joins)
  File "/home/dcallagh/work/beaker/Server/bkr/server/needpropertyxml.py", line 729, in filter
    query = getattr(CpuFlag.flag, equal)(value)
  File "/usr/lib64/python2.6/site-packages/sqlalchemy/orm/attributes.py", line 143, in __getattr__
    key)
AttributeError: Neither 'InstrumentedAttribute' object nor 'Comparator' object has an attribute '__equal__'