On 2016/02/15 21:33, Ashutosh Bapat wrote:
> Here's patch with better way to fix it. I think while concatenating the
> lists, we need to copy the lists being appended and in all the cases. If
> we don't copy, a change in those lists can cause changes in the upward
> linkages and thus lists of any higher level joins.
Maybe I'm missing something, but I don't understand why such a change in
those lists happens. Could you explain about that in more detail?
Best regards,
Etsuro Fujita
