onepica/avatax — pull request #12 by grikka (2014-08-26 20:29:31+00:00)
Title: Fixed wrong conditions for getting Gift Wrapper prices (new PR for develop branch)

from @rogyar

Magento EE on the following request:

$address->getGwPrice()
might return (string) "0.0000"

Then condition

if($address->getGwPrice())
will be TRUE
It causes unnecessary calculations and even wrong taxes calculation.
Glad to share this little fix with you.
Thanks.