[FIX] stock: wrong uom on tracability report.

The tracability report was using the quantity done (with the
unit of measure from he move line) and the uom of the product
(quant uom)

This commit changes the quantity done in order to keep the same
uom in the report. (uom of quants)

addons/stock/models/stock_traceability.py

@@ -155,7 +155,7 @@ class MrpStockReport(models.TransientModel):
             'model_id': move_line.id,
             'model':'stock.move.line',
             'product_id': move_line.product_id.display_name,
-            'product_qty_uom': str(move_line.qty_done) + ' ' + move_line.product_id.uom_id.name,
+            'product_qty_uom': str(move_line.product_uom_id._compute_quantity(move_line.qty_done, move_line.product_id.uom_id, rounding_method='HALF-UP')) + ' ' + move_line.product_id.uom_id.name,
             'location': move_line.location_id.name + ' -> ' + move_line.location_dest_id.name,
             'reference_id': ref,
             'res_id': res_id,
@@ -175,7 +175,7 @@ class MrpStockReport(models.TransientModel):
                 'model': model or 'stock.move.line',
                 'product_id': move_line.product_id.display_name,
                 'lot_id': move_line.lot_id.name,
-                'product_qty_uom': str(move_line.qty_done) + ' ' + move_line.product_id.uom_id.name,
+                'product_qty_uom': str(move_line.product_uom_id._compute_quantity(move_line.qty_done, move_line.product_id.uom_id, rounding_method='HALF-UP')) + ' ' + move_line.product_id.uom_id.name,
                 'location': move_line.location_dest_id.name,
                 'stream': stream,
                 'reference_id': False}]