gossamer receive a lot of duplicate messages from other gossamer nodes

## Issue summary

- We have logic to not send a notification message again. With that in mind, we shouldn't see a lot of duplicate messages. To give an idea, if you run a node til it say 40 blocks are built in the network, a typical gossamer node sees duplicate messages in order of thousands.
- Duplicate message on itself are not that harmful, but it is certainly not an ideal behaviour and it is something that could lead to other network related problems.

## Other information and links

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