[6.1, account] reconciliation _defaults function for 'name' needs to be called with context argument

Hi,

the function that provides the default name for account.reconcile is called without the context argument in account/account.py", line 1655. Somewhere down the line, the account module's ir_sequence does a context.get() without checking whether context is perhaps None and it all ends in tears.

  File "/home/oerinttst61/openobject-addons/account/account.py", line 1655, in<lambda>
    'name': lambda self,cr,uid,ctx={}: self.pool.get('ir.sequence').get(cr, uid, 'account.reconcile') or '/',
  File "/home/oerinttst61/openobject-server/openerp/addons/base/ir/ir_sequence.py", line 256, in get
    return self.get_id(cr, uid, code, 'code', context)
  File "/home/oerinttst61/openobject-server/openerp/addons/base/ir/ir_sequence.py", line 248, in get_id
    return self.next_by_code(cr, uid, sequence_code_or_id, context)
  File "/home/oerinttst61/openobject-server/openerp/addons/base/ir/ir_sequence.py", line 233, in next_by_code
    return self._next(cr, uid, ids, context)
  File "/home/oerinttst61/openobject-addons/account/ir_sequence.py", line 53, in _next
    if line.fiscalyear_id.id == context.get('fiscalyear_id'):
AttributeError: 'NoneType' object has no attribute 'get'

Cheers,
Stefan.