Bug 15092: (followup) Descriptions not show for search categories

If we have some item types in search categories, description
is not show in opac advanced search

To test:
1) Add some item type to a search category
2) Go to OPAC > Advanced search
empty description for that category
3) Apply the patch
4) Repeat 2), description must be present

Signed-off-by: Marc Véron <veron@veron.ch>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

opac/opac-search.pl

@@ -213,7 +213,10 @@ $template->param(search_languages_loop => $languages_limit_loop,);
 my $itemtypes = GetItemTypesCategorized;
 # add translated_description to itemtypes
 foreach my $itemtype ( keys %{$itemtypes} ) {
-    $itemtypes->{$itemtype}->{translated_description} = getitemtypeinfo( $itemtype, 'opac' )->{translated_description};
+    # Itemtypes search categories don't have (yet) translated descriptions, they are auth values
+    my $translated_description = getitemtypeinfo( $itemtype, 'opac' )->{translated_description};
+    $itemtypes->{$itemtype}->{translated_description} =
+            ( $translated_description ) ? $translated_description : $itemtypes->{$itemtype}->{description};
 }
 # the index parameter is different for item-level itemtypes
 my $itype_or_itemtype = (C4::Context->preference("item-level_itypes"))?'itype':'itemtype';