When a sales order is canceled, when one uses the 'New Copy from Quotation' button,
the binding are moved from the old (canceled) order to the new one, so the
synchronizations now happen on the new order.
Correct Python trap with string formatting

It would try to convert the items of a tuple to arguments of the
string formatting, and would raise the following error:

TypeError: not all arguments converted during string formatting
Merge pull request #9 from guewen/7.0-copy-quotation-move-binding

When a sales order is canceled, when one uses the 'New Copy from Quotation

...on' button,

the binding are moved from the old (canceled) order to the new one, so the
synchronizations now happen on the new order.