For subsequent payments on the same order, change the `transactionId` by adding an incrementing number to the order-id. Fixes #438
For subsequent payments on the same order, change the `transactionId` by adding an incrementing number to the order-id.
Fixes #438

hpeide/silverstripe-shop,webtorque7/silverstripe-shop,burnbright/silverstripe-shop,webtorque7/silverstripe-shop,silvershop/silvershop-core,webtorque7/silverstripe-shop,burnbright/silverstripe-shop,burnbright/silverstripe-shop