[FIX] Reconcilation problem corrected when foreign currency rate changes

lp bug: https://launchpad.net/bugs/491892 fixed

bzr revid: jvo@tinyerp.com-20091222085908-o9olesuskdm8wuoy

addons/account/account_bank_statement.py

@@ -141,7 +141,7 @@ class account_bank_statement(osv.osv):
         'period_id': _get_period,
     }
 
-    def button_confirm(self, cr, uid, ids, context=None):
+    def button_confirm(self, cr, uid, ids, context={}):
         done = []
         res_currency_obj = self.pool.get('res.currency')
         res_users_obj = self.pool.get('res.users')
@@ -174,6 +174,7 @@ class account_bank_statement(osv.osv):
             # In line we get reconcile_id on bank.ste.rec.
             # in bank stat.rec we get line_new_ids on bank.stat.rec.line
             for move in st.line_ids:
+                context.update({'date':move.date})
                 move_id = account_move_obj.create(cr, uid, {
                     'journal_id': st.journal_id.id,
                     'period_id': st.period_id.id,