solidus

Spree::Core::ControllerHelpers::PaymentParameters#set_payment_parameters_amount

This is a strange thing to do since an order can have multiple payments
but we always assume that it only has a single payment and that its
amount should be the current order total.  Also, this is pretty much
overridden when the order transitions to confirm by the logic inside of
Order#add_store_credit_payments.
We should reconsider this method and its usage at some point.

This method expects a params hash in the format of:

 {
   order: {
     # Note that only a single entry is expected/handled in this array
     payments_attributes: [
       {
         ...params...
       },
     ],
     ...other params...
   },
   ...other params...
 }

And this method modifies the params into the format of:

 {
   order: {
     payments_attributes: [
       {
         ...params...
         amount: <the order total>,
       },
     ],
     ...other params...
   },
   ...other params...
 }

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