wrong user name is stored in mysql radacct table

we are running freeradius-1.0.5-1.2 and mysql-5.0.27-1.fc5
when i look at the radacct table in the mysql database i see there are a
number of entries with a non-existent user. i.e.
D4JM4P61\\Kimberly Higgins

when i look at the radius.log file i see that the correct user name
appears and then the wrong one. why is the wrong one being stored in the
database?

radius.log
--------------------------------------------
Thu Mar 1 20:23:09 2007 : Error: TLS_accept:error in SSLv3 read
client certificate A
Thu Mar 1 20:23:09 2007 : Info: rlm_eap_tls: Received EAP-TLS ACK
message
Thu Mar 1 20:23:09 2007 : Info: (other): SSL negotiation finished
successfully
Thu Mar 1 20:23:09 2007 : Info: rlm_eap_tls: Received EAP-TLS ACK
message
Thu Mar 1 20:23:09 2007 : Info: rlm_eap_mschapv2: Issuing Challenge
Thu Mar 1 20:23:09 2007 : Auth: Login OK: [Khiggins] (from client
localhost port 0)
Thu Mar 1 20:23:10 2007 : Auth: Login OK: [D4JM4P61\\Kimberly Higgins]
(from client 3RE-BCardozo port 547472 cli 000e.35d8.4e66)



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