Error -614 when finding users in Helpdesk module

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What steps will reproduce the problem?
1. Find a user using the help desk module

What is the expected output? What do you see instead?

In catalina.out, I see the following error:
2015-04-22 07:48:38, ERROR, util.Helper, {1exr,{HELP DESK UID}} error adding 
objectclass 'pwmUser' to user cn={USER UID},o=company: 
com.novell.ldapchai.exception.ChaiOperationException: [LDAP: error code 20 - 
NDS error: duplicate value (-614)] [127.0.0.1/localhost.localdomain]

This doesn't happen for all users though. It appears that PWM is attempting to 
add the objectclass pwmUser to a user who already has that class. I confirmed 
that the group that has access to the Helpdesk module has rights to read and 
modify objectclasses in the directory server.

Also, not long after that error is produced, I see that a password was reset on 
the user account anyway, by the help desk user. So this doesn't prevent finding 
or modifying accounts.

What version of PWM are you using?
1.7.1

What ldap directory and version are you using?
eDirectory 8.8 SP7

Please paste any error log messages below:

Original issue reported on code.google.com by [email protected] on 22 Apr 2015 at 7:01