MT#62339 RedisLocationResultSet fix $filter assignment typo

* fix $filter =// typo, should have been $filter =.

Change-Id: I33e742cefc530406b736c72f3c9e325be9b84106
(cherry picked from commit 8b288081f8)
(cherry picked from commit 906584f07b)

lib/NGCP/Panel/Utils/RedisLocationResultSet.pm

@@ -129,8 +129,8 @@ sub find {
 
 sub search {
     my ($self, $filter, $opt) = @_;
-    $filter //= $self->_unalias($filter // {});
 
+    $filter = $self->_unalias($filter // {});
     my $new_rs = $self->meta->clone_object($self);
     unless ($new_rs->_query_done) {
         if ($filter->{id}) {