This update resolves a bug that occurred when generating reports for German-speaking customers. Specifically, a division-by-zero error was triggered when currency exchange differences (where the amount currency was zero) were processed. The fix ensures accurate report generation by ignoring currency rates for these zero-amount lines.

On move lines with zero `amount_currency` ( ex. currency exchange difference ), `_get_product_base_line_currency_rate` returns 0 currency rate which causes a division by zero error.

Ignore the rate for lines with zero `amount_currency`

opt-5358954

Forward-Port-Of: odoo/enterprise#105360