Failure in wiredtiger-test-format-stress-sanitizer with unexpected return by WT_CURSOR.next

t: FAILED: WT_CURSOR.next returned 100260 then 100263

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#  RUN PARAMETERS

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abort=0

alter=0

auto_throttle=1

backups=0

bitcnt=7

bloom=1

bloom_bit_count=59

bloom_hash_count=32

bloom_oldest=0

cache=52

cache_minimum=20

checkpoints=wiredtiger

checkpoint_log_size=173

checkpoint_wait=10

checksum=off

chunk_size=8

compaction=0

compression=zlib

data_extend=1

data_source=table

delete_pct=0

dictionary=0

direct_io=0

encryption=none

evict_max=0

file_type=variable-length column-store

firstfit=0

huffman_key=0

huffman_value=0

independent_thread_rng=0

in_memory=0

insert_pct=54

internal_key_truncation=1

internal_page_max=11

isolation=snapshot

key_gap=8

key_max=110

key_min=19

leaf_page_max=15

leak_memory=0

logging=1

logging_archive=1

logging_compression=zlib

logging_file_max=325005

logging_prealloc=0

long_running_txn=0

lsm_worker_threads=4

merge_max=10

mmap=1

modify_pct=0

ops=100000

prefix_compression=1

prefix_compression_min=2

quiet=1

read_pct=0

rebalance=1

repeat_data_pct=33

reverse=0

rows=100000

runs=1

salvage=1

split_pct=72

statistics=0

statistics_server=0

threads=4

timer=360

transaction_timestamps=0

transaction-frequency=9

truncate=1

value_max=193

value_min=15

verify=1

wiredtiger_config=

write_pct=46

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