This test calls replSetStepDown and then waits for a primary to be agreed upon and all other nodes to report as secondaries here. Then, it calls replSetFreeze on one of the secondaries. However, if two nodes start elections at the same time after the replSetStepDown, then it is possible that even after the wait for primaries and secondaries, one of the secondaries still has an election ongoing and thus will refuse to run replSetFreeze. The test should handle the replSetStepDown in a way which does not allow this race to occur.