Code review comment for lp:~therp-nl/ocb-addons/6.1-lp941817-autocompute_taxes_on_proforma

I think this is an important improvement.

Just wondering: why should the 'Compute Taxes' button be needed at all? Shouldn't taxes be automatically be updated whenever an invoice line changes?

Of course with keeping the possibility to add extra taxes, or modify tax lines when there have been rounding errors (as still happens all to frequently).