pessimistic-txn: fix non-pessimistic lock conflict (#6066)
pessimistic-txn: fix non-pessimistic lock conflict (#6066)

Signed-off-by: youjiali1995 <c0aa3f5eb42bd3bf1adeeced4b718fc1900fde64@gmail.com>
pingcap/tikv,BusyJay/tikv,c4pt0r/tikv,BusyJay/tikv,BusyJay/tikv,BusyJay/tikv,pingcap/tikv