Error during Bayes DB upgrade

[Kevin Peuhkurinen]

Hi all.   I've got SA 3.02 installed on a new box.   I've copied over 
the Bayes database from my 2.64 installation and done "sa-learn --sync" 
followed by "sa-learn --backup > backup.txt".    I then added the 
following to my local.cf file:

bayes_store_module      Mail::SpamAssassin::BayesStore::SQL
bayes_sql_dsn           DBI:mysql:bayes:localhost
bayes_sql_username      bayes
bayes_sql_password      XXXXXXX
bayes_sql_override_username     amavis
Finally, I did an "sa-learn -D --restore backup.txt".   Everything seems 
to run fine for a while, but finally fails with:

debug: bayes: seen_put: SQL Error: Duplicate entry 
'11-!~!UENERkVCMDkAAQACAHAAAAAAAAAAOKG7EAXlEBqhuwgAKypWwgAARU1TTURCLkRMTA
AAAAAAAAAAG1X6IKpmEc2byACqAC/EWgwAAABFWENILVBST0QAL289SEVQQ09FL291PU1BSUwvY249UmVjaXBpZW5...' 
for key 1
debug: bayes: Error inserting msgid in seen table for line: s   h       
!~!UENERkVCMDkAAQACAHAAAAAAAAAAOKG7EAXlEBqhuwgAKypWw
gAARU1TTURCLkRMTAAAAAAAAAAAG1X6IKpmEc2byACqAC/EWgwAAABFWENILVBST0QAL289SEVQQ09FL291PU1BSUwvY249U
mVjaXBpZW50cy9jbj1TSEFSS0kALgAAAAAAAAAz9pTKYRLUEZwZAJAn3ndqAQBN0oULOubTEZwDAJAn3ndqAAAANG3VAAAAAAA
ALgAAAAAAAAAz9pTKYRLUEZwZAJAn3ndqAQBN0oULOubTEZwDAJAn3ndqAAAANG3WAAAQAAAAFQxKTv3fv0CcPW5Eyh3SrxI
[EMAIL PROTECTED]

Any ideas how I can get around this?
Thanks.