Use local copies in Fetcher._fetchable_partitions to avoid mutation errors (#1400)
Use local copies in Fetcher._fetchable_partitions to avoid mutation errors (#1400)


wikimedia/operations-debs-python-kafka,mumrah/kafka-python,ohmu/kafka-python,scrapinghub/kafka-python,Aloomaio/kafka-python,Aloomaio/kafka-python,wikimedia/operations-debs-python-kafka,DataDog/kafka-python,Yelp/kafka-python,ohmu/kafka-python,dpkp/kafka-python,dpkp/kafka-python,mumrah/kafka-python,Yelp/kafka-python,scrapinghub/kafka-python