these probably came over during an automatic sync of an attached receiver, which must have
had an SD card or memory stick with data from another receiver.
So:
[ ] move files fo the appropriate file_repo locations
[ ] rerun affected receivers, since the tag finder would not have been able to locate those files.
[ ] prevent this from happening again: jbrzusto/motusServer#260
these probably came over during an automatic sync of an attached receiver, which must have had an SD card or memory stick with data from another receiver.
So: