#125 Doing import in update mode on a specific website still change url_key in Default Values

[mirindra ravo]

Hello,
I use magmi v0.7.20, and my magento version is 1.8.1.0
I have 3 websites on my magento installation, one independant website for each languages : french, english and spanish, not only store views.
I created my products with magmi, with a csv file wich contains french values, without specifying store column. After reindexing, everything is right, products are in all websites, with french values.
Then, I updated the same products with a csv wich contains english values to translate attributes with storeview or website scope, and I put a store column for english website. English website is updated correctly.
But after reindexing, url_key in Default values has the english value; all other attributes do not change, but only url_key do that.
After updating the same products with spanish values and reindexing, url_key in Default values has the spanish value.
Our french website use default values so the url_key of this website goes wrong because it takes the last imported data in other website.
We have to import french values a second time in update mode to make it use a french url_key.

Here is an overview of the lines I used in csv files :
Default csv for create :
sku;type;status;visibility;tax_class_id;name;url_key;others_attributes...
08291-00018-00-test3;simple;1;4;Aucun;Product name french;product-url-fr;...
English update csv :
store;sku;type;status;visibility;tax_class_id;name;;url_key;others_attributes...
en;08291-00018-00-test3;simple;1;4;Aucun;Product name english;product-url-en;...
Spanish update csv :
store;sku;type;status;visibility;tax_class_id;name;;url_key;others_attributes...
es;08291-00018-00-test3;simple;1;4;Aucun;Product name spanish;product-url-es;...

Does someone here can tell me what to do if I want my default url_key unchanged by last import with magmi?