If l4 sends a WIRE_QUERY_SHORT_CHANNEL_IDS at the wrong time, we will
get that and be upset the response is wrong:
```
2026-01-13T14:45:55.9059786Z E AssertionError: assert ['010806226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f00000000000f42400100110000006800000100000000690000010000', '010506226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f001100000068000001000000006900000100000103000402'] in (['010806226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f00000000000f42400100110000006800000100000000690000010000'], ['010806226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f00000000000f42400100110000006900000100000000680000010000'])
2026-01-13T14:45:55.9063357Z
2026-01-13T14:45:55.9063527Z tests/test_gossip.py:762: AssertionError
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>