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x/wasm/ibc.go

@@ -118,6 +118,9 @@ func (i IBCHandler) OnChanOpenTry(
  return "", sdkerrors.Wrap(err, "claim capability")
  }
  }
+
+ // In the future, we can negotiate (see design comment above), but for now, we only error if we disagee
+ // with the proposed version
  return counterpartyVersion, nil
 }
 
@@ -137,6 +140,11 @@ func (i IBCHandler) OnChanOpenAck(
  return sdkerrors.Wrapf(channeltypes.ErrChannelNotFound, "port ID (%s) channel ID (%s)", portID, channelID)
  }
  channelInfo.Counterparty.ChannelId = counterpartyChannelID
+ // This is a bit ugly, but it is set AFTER the callback is done, yet we want to provide the contract
+ // access to the channel in queries. We can revisit how to better integrate with ibc-go in the future,
+ // but this is the best/safest we can do now. (If you remove this, you error when sending a packet during the
+ // OnChanOpenAck entry point)
+ // https://github.com/cosmos/ibc-go/pull/647/files#diff-54b5be375a2333c56f2ae1b5b4dc13ac9c734561e30286505f39837ee75762c7R25
  i.channelKeeper.SetChannel(ctx, portID, channelID, channelInfo)
  msg := wasmvmtypes.IBCChannelConnectMsg{
  OpenAck: &wasmvmtypes.IBCOpenAck{