Internal RPC method requests like 'read' should send a list of IDs

This following request crashes on OpenERP server 6.0.3:

>>> oerp.read('res.currency', 1)

OpenERP traceback:

Traceback (most recent call last):
  File "/home/oerp/openerp-server-6.0.3/bin/osv/osv.py", line 122, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/oerp/openerp-server-6.0.3/bin/osv/osv.py", line 176, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/oerp/openerp-server-6.0.3/bin/osv/osv.py", line 167, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/oerp/openerp-server-6.0.3/bin/addons/base/res/res_currency.py", line 75, in read
    rates=r['rate_ids']
TypeError: string indices must be integers, not str

To fix that, a list of IDs must be sent:

>>> oerp.read('res.currency', [1])
[{'rate_ids': [1], 'name': 'EUR', 'rounding': 0.01, 'symbol': u'\u20ac', 'company_id': [1, 'OpenERP S.A.'], 'date': '2012-01-01', 'rate': 1.0, 'base': False, 'active': True, 'id': 1, 'accuracy': 4}]

'read' method is used by the browse functionality, but has to be used with a list of IDs to avoid any problems.