Ideally speaking it should not be tweeting duplicates.
Here is the error log:
{ [Error: Status is a duplicate.]
message: 'Status is a duplicate.',
statusCode: 403,
code: 187,
allErrors: [ { code: 187, message: 'Status is a duplicate.' } ],
twitterReply: '{"errors":[{"code":187,"message":"Status is a duplicate."}]}' }
Ideally speaking it should not be tweeting duplicates.
Here is the error log: