[repo] fix extid2entity to ensure connection's has a cnxset
else we'll call source.doexec, which attempt to access to cnxset.cu, and crash
in some case (eg unittest_cwxmlparser in sobjects/test).
Also, manually switch to 'write' mode to ensure cnxset is not released until
commit/rollback when some entity is inserted.
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()