Bug 22140: Use of EasyAnalyticalRecords pref is get_hostitemnumbers_of

Like Bug 20702 defined GetHostItemsInfo does nothing if EasyAnalyticalRecords pref is disabled, get_hostitemnumbers_of must be dependant on this pref too.

Test plan :
1) Build an analytical record with 773$0 and $9
2) Enable EasyAnalyticalRecords
4) Place an hold on the record
5) => You see the linked item
6) Disable EasyAnalyticalRecords
7) Place an hold on the record
8) => You dont see the linked item

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

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>

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

C4/Items.pm

@@ -1199,8 +1199,12 @@ references on array of itemnumbers.
 
 sub get_hostitemnumbers_of {
     my ($biblionumber) = @_;
-    my $marcrecord = C4::Biblio::GetMarcBiblio({ biblionumber => $biblionumber });
 
+    if( !C4::Context->preference('EasyAnalyticalRecords') ) {
+        return ();
+    }
+
+    my $marcrecord = C4::Biblio::GetMarcBiblio({ biblionumber => $biblionumber });
     return unless $marcrecord;
 
     my ( @returnhostitemnumbers, $tag, $biblio_s, $item_s );