Bug in module stock

I have encountered a problem in the module stock in the branch ocb 6.1 file stock.py

The problem that occurs is that when I put an order for a product that your UoM is
Units , if I make the purchase in thousands eg , to generate the accounting entries me
I find that putting the value is 1000 times the real.

For example :

Buy 2 thousands labels to 89.30 euros thousand.

Me to increase my stock 2000 units increases . perfect.
The cost price puts me well . 0.0893 Euros.

But accounting generates me an accounting of inventory increased to a value of 178600 euros when it should be 178.60 .

I have retouched the module file stock.py stock as follows :

Line 2156, said:

qty = product_uom_obj._compute_qty(cr, uid, move.product_uom.id, move.product_qty, default_uom)

I added :

precio = product_uom_obj._compute_price(cr, uid, move.product_uom.id, move.price_unit, default_uom)

Line 2161, said :

reference_amount = qty * move.price_unit

I have replaced :

reference_amount = qty * precio

and so says the accounting entry generated 178,60 instead of EUR 178600 .