Greetings,

I recently upgraded from 8.2 to 9.0.2 on an installation that mixes LDAP users 
with database users.  The email addresses for all of the database users were 
replaced with the email address of a random LDAP user.  We have about 125 
database users in the system.


1.       Is it safe to restore the oc_preferences table from backup, or should 
I restore the entire database to recover those email addresses?  (Restoring the 
entire database and server files to pre-upgrade status is also an option.)

2.       Is this a known issue, or should I submit a bug on GitHub?  (If known, 
is there a prescribed remediation to recover this data other than what I'm 
considering in #1?)

3.       Was this just a function of the upgrade process, or am I in jeopardy 
of subsequent LDAP data loads overwriting those email addresses again? (If 
anyone knows)

4.       We can't manually repair the email addresses on the Users page due to 
issue #14127 (https://github.com/owncloud/core/issues/14127).  However, we can 
recover all 125 email addresses manually and hand-edit the oc_preferences table 
directly.  Would this process work?

I appreciate any insight anyone has.

Matt

--
Matt Leonhardt, Application Systems Architect
mleonha...@mpr.com | +1 (703) 519-0499

320 King Street, Suite 400
Alexandria, VA  22314

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