Avoid early return upon confirmation of channel funding #2622
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This early return is only possible if the channel requires a single confirmation, allowing a channel_ready message to go out. This can be problematic though if a commitment transaction (specifically from the counterparty, as the channel would be immediately closed if a local commitment is broadcast) also confirms within the same block. The
ChannelMonitor will detect both, but it won't inform the ChannelManager at all. Luckily, while the channel still is considered open to the ChannelManager, the ChannelMonitor will reject any further updates to the channel state.