sub flip {
my $self = shift;
+
+#warn "self thisfield: ".$self->thisfield->name;
+#warn "self thatfield: ".$self->thatfield->name;
+
return SQL::Translator::Schema::Graph::Edge->new( thisfield => $self->thatfield,
thatfield => $self->thisfield,
thisnode => $self->thatnode,