DEICH-5950 canItemBeRenewed: fix number of holds vs available items check

koha/Core/Circulation.pm

@@ -880,7 +880,7 @@ sub canItemBeRenewed {
     if ($self->Deichman::Item::CanItemFillHold()) {
       my $ignoreFound = 1;
         try { $self->Deichman::Item::GetBiblioReserves($ignoreFound) };
-        if (scalar @{$self->{biblioHolds}} > $self->Deichman::Item::AvailableItemsCount()) {
+        if (scalar @{$self->{biblioHolds}} >= $self->Deichman::Item::AvailableItemsCount()) {
             $self->{error} = Core::Exception::Circulation::RenewErrorWithMessage->new("on_hold");
             return $self;
         }