[FIX] l10n_ke_edi_tremol: Multiline invoice taxes

Before this commit:
In the case of an invoice with multiple product lines and a line has a tax amount in (16, 8, 0), a KeyError is raised while generating the message for the device.

After this commit:
The message for the device can be generated.

closes odoo#149778

X-original-commit: 00d9d3c
Signed-off-by: Brice Bartoletti (bib) <bib@odoo.com>

addons/l10n_ke_edi_tremol/models/account_move.py

@@ -172,8 +172,8 @@ def is_candidate(discount_line, other_line):
             item_code = line.tax_ids[0].l10n_ke_item_code_id
             for tax in tax_details['tax_details_per_record'][line]['tax_details']:
                 if tax['tax'].amount in (16, 8, 0): # This should only occur once
-                    tax_details = tax_details['tax_details_per_record'][line]['tax_details'][tax]
-                    price_total = abs(tax_details['base_amount_currency']) + abs(tax_details['tax_amount_currency'])
+                    line_tax_details = tax_details['tax_details_per_record'][line]['tax_details'][tax]
+                    price_total = abs(line_tax_details['base_amount_currency']) + abs(line_tax_details['tax_amount_currency'])
                     percentage = tax['tax'].amount
             price = round(price_total / abs(line.quantity) * 100 / (100 - line.discount), 2) * currency_rate
             uom = line.product_uom_id and line.product_uom_id.name or ''