This is not really Reapers fault, but rather a problem in Cassandra that doesn't report aborted repairs correctly. I've created a Cassandra ticket for this: https://issues.apache.org/jira/browse/CASSANDRA-9268
Note that this is only relevant for repairs that are aborted outside of Reaper. Repairs that are aborted by Reaper due to timeout are still handled correctly.
This is not really Reapers fault, but rather a problem in Cassandra that doesn't report aborted repairs correctly. I've created a Cassandra ticket for this: https://issues.apache.org/jira/browse/CASSANDRA-9268
Note that this is only relevant for repairs that are aborted outside of Reaper. Repairs that are aborted by Reaper due to timeout are still handled correctly.