Doesn't import orders because of "cod_fee = NULL"

There is a magento extention which is calles CashOnDelivery. This is done in Connector as well as far as I see.

But if no CashOnDelivery is selected the Magento API gives back a NULL Value.

Snippet from PHP API Request:
 ["cod_fee"]=> NULL ["base_cod_fee"]=> NULL ["cod_fee_invoiced"]=> NULL ["base_cod_fee_invoiced"]=> NULL ["cod_tax_amount"]=> NULL ["base_cod_tax_amount"]=> NULL ["cod_tax_amount_invoiced"]=> NULL ["base_cod_tax_amount_invoiced"]=> NULL

You can see: ["cod_fee"]=> NULL
but Connector expects a "float(record.get('cod_fee', 0.0)) TypeError: float() argument must be a
string or a number".

So I think there is the bug.

Revision Info of openerp-connector-magento: 952 launchpad_translations_on_behalf_of_openerp-connector-core-editors-20140117071004-k7rbd4qs9ih03f3p

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