[MM3-users] sqlalchemy.orm.exc.MultipleResultsFound: Multiple rows were found for one_or_none()

Hi Team,

      Today, I found an error message like "Multiple rows were found

for one_or_none()" when a hold message is approved for a list. Until yesterday the mails were accepted and delivered fine.

      But today the above said error message is thrown. Apart from

that, I saw the mail had gone into the shunt queue.

     The "mailman qfile" output of the shunt message and the respective

traceback log from mailman.log are attached. You may please go through them and help me out.

     Please also let me know if I have to share any more details.

-- Thanks & Regards, Shashi Kanth.K 9052671936