In move_chunk_critical_section_non_internal_client_abort.js moveChunk cmd will fail with an Interrupted error code because of collMod (this is expected). In the suite, sharding_csrs_continuous_config_stepdown, a csrs node will step down while the test is running. If this happens after the first interruption while the _configsvrMoveChunk cmd is being executed, it will fail with a InterruptedDueToReplStateChange error. This is a retriable error. If this retriable error happens after the first Interruption due to collMod, collMod won't run again, so the retry of _configsvrMoveChunk cmd will not be interrupted and will succeed. This might cause the test to fail with a: command worked when it should have failed exception.