Upgrading from 0.5.6 to 0.6.2 and adding new fields to
the issue class:
While upgrading we also added some new fields to our
tracker. A reproduceable behaviour was that we lost
*all* standard class information that is present in any
class: creation, creator, activity. The fields were
simply empty. We are using the sqlite backend, so
migrating this information from the old backup database
was not a problem since we had a backup. Maybe there is
a problem in the sqlite backend code for changing
roundup database schema?