fix bad-caching of datetime with tz info at sql generation time
There is a special handling for datetime with tzinfo, where value was stored in
the query cache. The implementation of merge_args was simply overwriting
parameters of the query with those in the query cache, expecting no collision.
To fix this:
* handle replacement of tzinfo in merge_args, not at sql generation time
* add an assertion to ensure we've actually no collision
Closes #6978316
sync_schema_props_perms('EmailAddress')
for source in rql('CWSource X WHERE X type "ldapuser"').entities():
config = source.dictconfig
host = config.pop('host', u'ldap')
protocol = config.pop('protocol', u'ldap')
source.cw_set(url=u'%s://%s' % (protocol, host))
source.update_config(skip_unknown=True, **config)
commit()