occasional recceiver error - string indices must be integers, not unicode

[tynanford]

Documenting here an error we occasionally (~once every 6 months) get in recceiver. Usually someone notices that after adding a new IOC or updating reccaster not all the expected info made it to channel finder.

This is the error in recceiver. A restart of recceiver fixes things but I haven't had time to look into what is actually causing the initial problem.

2022-09-19 16:10:01-0700 [-] ERROR:recceiver.cfstore CF_COMMIT FAILURE: [Failure instance: Traceback: <type 'exceptions.TypeError'>: string indices must be integers, not unicode
        /usr/lib64/python2.7/threading.py:785:__bootstrap
        /usr/lib64/python2.7/threading.py:812:__bootstrap_inner
        /usr/lib64/python2.7/threading.py:765:run
        --- <exception caught here> ---
        /usr/lib64/python2.7/site-packages/twisted/python/threadpool.py:167:_worker
        /usr/lib64/python2.7/site-packages/twisted/python/context.py:118:callWithContext
        /usr/lib64/python2.7/site-packages/twisted/python/context.py:81:callWithContext
        /opt/recsync/recceiver/cfstore.py:269:_commitWithThread
        /opt/recsync/recceiver/cfstore.py:552:poll
        /opt/recsync/recceiver/cfstore.py:430:__updateCF__
        ]