Assertion in SCQIndexing.sequenceForPosition is triggered on Mac

[alamar]

java.lang.AssertionError
  at net.openhft.chronicle.queue.impl.single.SCQIndexing.sequenceForPosition(SCQIndexing.java:519)
  at net.openhft.chronicle.queue.impl.single.SingleChronicleQueueStore.sequenceForPosition(SingleChronicleQueueStore.java:309)
  at net.openhft.chronicle.queue.impl.single.StoreTailer.beyondStartOfCycleBackward(StoreTailer.java:376)
  at net.openhft.chronicle.queue.impl.single.StoreTailer.beyondStartOfCycle(StoreTailer.java:339)
  at net.openhft.chronicle.queue.impl.single.StoreTailer.next0(StoreTailer.java:304)
  at net.openhft.chronicle.queue.impl.single.StoreTailer.readingDocument0(StoreTailer.java:219)
  at net.openhft.chronicle.queue.impl.single.StoreTailer.readingDocument(StoreTailer.java:194)
  at net.openhft.chronicle.queue.impl.single.StoreTailer.readingDocument(StoreTailer.java:138)
  at software.chronicle.fix.staticcode.msgseq.QueueMsgSequenceHandler.refresh(QueueMsgSequenceHandler.java:57)

Possibly related to #1059