send_tlvs is NULL if no special features are supported, and peer sets `next_to_send` anyway: ``` 0x5ed1c6719538 peer_reconnect channeld/channeld.c:5205 0x5ed1c6719dab init_channel channeld/channeld.c:5959 0x5ed1c6719f04 main channeld/channeld.c:6005 ``` Backport: v24.08 Fixes: https://github.com/ElementsProject/lightning/issues/7486 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>