When I try to manually 'expire' some orphaned tests I get the following message:-

Code:
error:  DBD::mysql::db do failed: Duplicate entry '3526970' for key 1 at /usr/local/apache/htdocs/sb/account/testsPendingPost.mhtml line 21. 
context:  ...   
17:   
18:  my $priority = $test_info->{priority}; 
19:  $priority = $n unless defined($priority); 
20:   
21:  $dbh->do("INSERT INTO queued_tests " . 
22:  "(k, n, queue_name, priority) " . 
23:  "VALUES (?, ?, ?, ?)", { }, 
24:  $k, $n, 'dropped-tests', $priority); 
25:   
...    
code stack:  /usr/local/apache/htdocs/sb/account/testsPendingPost.mhtml:21
/usr/local/apache/htdocs/sb/account/autohandler:6
/usr/local/apache/htdocs/sb/autohandler:53
/usr/local/apache/htdocs/sb/syshandler:20 
raw error