[Galette-discussion] Update error from version 0.8.2.1

[Leduc Benjamin <giby_the_kid@xxxxxxxx>]

Hi, 

I tried to upgrade galette to 0.9 from 0.8.2.1. It does not propose that version in the installing process, and I get an error: ALTER TABLE galette_adherents ADD parent_id int(10) unsigned DEFAULT NULL

How to correct it? 

Thanks in advance

Benjamin