[DRE-maint] Bug#695774: redmine: fails to upgrade, says something about a pgsql_adapter

[Jérémy Lal]

The bug comes from configuring two instances with the same db user.
dbconfig-common regenerates a random password when configuring
the second instance, wiping the password set for the first instance
that has already been recorded in database.yml.

Workaround : get the password of the second instance yy from
/etc/redmine/yy/database.yml
and set it in the database.yml of the first instance.

I am working on a fix.

Jérémy.