sub _siblings {
my $self = shift;
my $position_column = $self->position_column;
- return defined (my $pos = $self->get_column($position_column))
+ my $pos;
+ return defined ($pos = $self->get_column($position_column))
? $self->_group_rs->search(
- { $position_column => { '!=' => $self->get_column($position_column) } },
+ { $position_column => { '!=' => $pos } },
)
: $self->_group_rs
;