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acc9dc4852
We close the channel because the payment fulfilment is not totally done, and
we generate 6 blocks, causing it to hit CLTV deadline.
```
# send some payments, mine a block or two
inv = l2.rpc.invoice(10**4, '1', 'no_1')
l1.rpc.pay(inv['bolt11'])
# l2 attempts to close a channel that it leased, should fail
with pytest.raises(RpcError, match=r'Peer leased this channel from us'):
l2.rpc.close(l1.get_channel_scid(l2))
bitcoind.generate_block(6)
sync_blockheight(bitcoind, [l1, l2])
# make sure we're at the right place for the csv lock
> l2.daemon.wait_for_log('Blockheight: SENT_ADD_ACK_COMMIT->RCVD_ADD_ACK_REVOCATION LOCAL now 115')
tests/test_closing.py:823:
...
lightningd-2 2022-07-17T13:15:34.242Z DEBUG lightningd: Adding block 115: 39d95061935e9fc42b04c86ae60d0cf157765aff4c040f3a8d0b7888db19e015
lightningd-2 2022-07-17T13:15:34.244Z UNUSUAL 0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518-chan#2: Peer permanent failure in CHANNELD_NORMAL: Fulfilled HTLC 0 SENT_REMOVE_COMMIT cltv 115 hit deadline
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>