lnd: [bug]: lncli listchaintxns in reversed order

Background

From lncli documentation:

NAME:
lncli listchaintxns - List transactions from the wallet.

DESCRIPTION:

List all transactions an address of the wallet was involved in.

This call will return a list of wallet related transactions that paid
to an address our wallet controls, or spent utxos that we held. The
start_height and end_height flags can be used to specify an inclusive
block range over which to query for transactions. If the end_height is
less than the start_height, transactions will be queried in reverse.

If the end_height is less than the start_height, transactions will be queried in reverse.

Despite the order of start_height and end_height the transactions are returned in the same order.

Your environment

• version of lnd v0.15.1-beta
• which operating system (uname -a on *Nix) Linux f466fc441522 6.1.4-zen2-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Sat, 07 Jan 2023 15:27:06 +0000 x86_64 Linux
• version of bitcoind Bitcoin Core RPC client version v22.0.0

Steps to reproduce

• start lnd
• mine blocks
• send transaction
• mine blocks
• send transaction
• mine blocks
• call lncli listchaintxns

Expected behaviour

lncli listchaintxns --start_height 1 --end_height 2000 returns transactions in direct order. lncli listchaintxns --start_height 2000 --end_height 1 returns transactions in reversed order.

Actual behaviour

Both return transactions in reversed order:

lncli listchaintxns --start_height 1130 --end_height 1140 | grep block_height
    "block_height": 1140,
    "block_height": 1134,

lncli listchaintxns --start_height 1140 --end_height 1130 | grep block_height
    "block_height": 1140,
    "block_height": 1134,