BOLT 2: chain_hash requirement for accept_channel?

[matthias-g]

In 02-Peer-Protocol the specification says, under accept_channel -> Requirements -> The receiver:

if the chain_hash value, within the open_channel, message is set to a hash of a chain that is unknown to the receiver:
- MUST reject the channel.

To my understanding this should be a requirement for the open_channel message instead for the accept_channel message. The chain_hash value is not included in the accept_channel message and as the receiver of the accept_channel message is the sender of the open_channel message, this would be the same as the requirement for the open_channel message, that the sender

MUST ensure the chain_hash value identifies the chain it wishes to open the channel within.

[rustyrussell]

Good catch, yes, it's in the wrong place....