Bug 28147: Pass itemnumber through to Account->pay

Currently the itemnumber is not passed through when paying a single fine,
we should do that

To test:
1 - Create a manual debit and provide a barcode so the debit is linked to an item
2 - Go to the 'Make a payment' tab. Click the 'Writeoff' button on the individual line
3 - View the 'Transactions tab' The writeoff has no item details
4 - Apply patch
5 - Repeat 1 & 2
6 - View the transactions tab. The writeoff shows item details
7 - Confirm 'Writeoff amount' and 'Writeoff selected' still work and do not link to item

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

members/pay.pl

@@ -94,6 +94,7 @@ elsif ( $input->param('apply_credits') ) {
     apply_credits({ patron => $patron, cgi => $input });
 }
 elsif ( $input->param('confirm_writeoff') ) {
+    my $item_id         = $input->param('itemnumber');
     my $accountlines_id = $input->param('accountlines_id');
     my $amount          = $input->param('amountwrittenoff');
     my $payment_note    = $input->param("payment_note");
@@ -120,6 +121,7 @@ elsif ( $input->param('confirm_writeoff') ) {
                 type       => 'WRITEOFF',
                 note       => $payment_note,
                 interface  => C4::Context->interface,
+                item_id    => $item_id,
                 library_id => $branch,
             }
         )->{payment_id};