Fixed a bug in my purchases where tarnsaction amounts were shown that did not take into account the in store credit

used in the transaction.

docs/changelog/7.x.x.txt

@@ -13,6 +13,9 @@
   - fixed a bug in the Ogone pay driver where for certain combinations of tax
     rates and in store credit a rounding error would prevent checkout at
     Ogone. ( Martin Kamerbeek / Oqapi )
+  - fixed a bug in My Purchases where in store credit would not be taken into
+    account in the overview yielding zero or neagtive transaction amounts on
+    the screen. ( Martin Kamerbeek / Oqapi )
 
 7.7.14
  - fixed #10606: shelf selector

lib/WebGUI/Account/Shop.pm

@@ -197,8 +197,8 @@ sub www_managePurchases {
         push @{$var->{transactions}}, {
             %{$transaction->get},
             viewDetailUrl   => $self->getUrl('op=account;module=shop;do=viewTransaction;transactionId='.$id),
-            amount          => sprintf("%.2f", $transaction->get('amount')),
-            amountMinusTax  => sprintf( '%.2f', $transaction->get('amount') - $transaction->get('taxes') ),
+            amount          => sprintf( '%.2f', $transaction->get('amount') - $transaction->get('shopCreditDeduction') ),
+            amountMinusTax  => sprintf( '%.2f', $transaction->get('amount') - $transaction->get('shopCreditDeduction') - $transaction->get('taxes') ),
         };
     }