Bug 22762: Fix items.collection display on receiving

Caused by
  commit 31c29fd31f
  Bug 21206: Replace C4::Items::GetItem

The log says: The method Koha::Item->collection is not covered by tests!

It has highlighted an older problem:
Since
  commit bb1e9c500c
  Bug 17248 - Koha::AuthorisedValues - Remove GetKohaAuthorisedValueLib
the "Collection code" is not filled correctly (items.collection vs items.ccode).

Test plan:
- Set acqcreateitem to "when placing an order"
- Receive an order with items
=> The "Collection code" column must be filled with the items.ccode value
- Edit an item (You may need the patches on bug 22669)
- Change the collection code value
=> The "Collection code" column must be filled with the new value

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>

acqui/orderreceive.pl

@@ -144,7 +144,7 @@ if ($AcqCreateItem eq 'receiving') {
         $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({frameworkcode => $fw, kohafield => 'items.location', authorised_value => $item->{location} });
         $item->{location} = $descriptions->{lib} // '';
 
-        $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({frameworkcode => $fw, kohafield => 'items.collection', authorised_value => $item->{collection} });
+        $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({frameworkcode => $fw, kohafield => 'items.ccode', authorised_value => $item->{ccode} });
         $item->{collection} = $descriptions->{lib} // '';
 
         $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({frameworkcode => $fw, kohafield => 'items.materials', authorised_value => $item->{materials} });

catalogue/getitem-ajax.pl

@@ -69,7 +69,7 @@ if($itemnumber) {
     $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({ frameworkcode => $fw, kohafield => 'items.location', authorised_value => $item->location });
     $item_unblessed->{location} = $descriptions->{lib} // '';
 
-    $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({ frameworkcode => $fw, kohafield => 'items.collection', authorised_value => $item->collection });
+    $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({ frameworkcode => $fw, kohafield => 'items.ccode', authorised_value => $item->ccode });
     $item_unblessed->{collection} = $descriptions->{lib} // '';
 
     $descriptions = Koha::AuthorisedValues->get_description_by_koha_field({ frameworkcode => $fw, kohafield => 'items.materials', authorised_value => $item->materials });