[cwvreg] Fix propertyvalues hot updates
When CWProperty instances are touched, the corresponding value gets
updated in vreg['propertyvalues'], but their type was ignored.
# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s precreate script, executed at instance creation time or when
the cube is added to an existing instance, before the schema is serialized.
This is typically to create groups referenced by the cube'schema.
"""