Fix WiredTiger cursor prev/next traversal failure on prepare retry

############################################

#  RUN PARAMETERS

############################################

abort=0

alter=0

auto_throttle=1

backups=0

bitcnt=6

bloom=1

bloom_bit_count=20

bloom_hash_count=31

bloom_oldest=0

cache=224

cache_minimum=20

checkpoints=off

checkpoint_log_size=20

checkpoint_wait=78

checksum=off

chunk_size=8

compaction=1

compression=none

data_extend=0

data_source=table

delete_pct=0

dictionary=0

direct_io=0

encryption=rotn-7

evict_max=5

file_type=row-store

firstfit=0

huffman_key=0

huffman_value=0

independent_thread_rng=1

in_memory=1

insert_pct=17

internal_key_truncation=1

internal_page_max=14

isolation=random

key_gap=14

key_max=32

key_min=13

leaf_page_max=16

leak_memory=0

logging=0

logging_archive=1

logging_compression=lz4

logging_file_max=344947

logging_prealloc=0

long_running_txn=0

lsm_worker_threads=4

memory_page_max=4

merge_max=15

mmap=1

modify_pct=78

ops=0

prefix_compression=0

prefix_compression_min=5

prepare=1

quiet=1

read_pct=5

rebalance=0

repeat_data_pct=70

reverse=0

rows=1000000

runs=1

salvage=0

split_pct=50

statistics=0

statistics_server=0

threads=28

timer=4

timing_stress_checkpoint=0

timing_stress_lookaside_sweep=0

timing_stress_split_1=0

timing_stress_split_2=0

timing_stress_split_3=0

timing_stress_split_4=0

timing_stress_split_5=0

timing_stress_split_6=1

timing_stress_split_7=0

timing_stress_split_8=0

transaction_timestamps=1

transaction-frequency=8

truncate=1

value_max=80

value_min=20

verify=0

wiredtiger_config=

write_pct=0

############################################