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This is not anything important but if a user keeps relogging it will start to spam console. I suggest only printing this message if its used and not empty.

https://github.com/elytra/MatterLink/blob/master/core/src/main/kotlin/matterlink/handlers/JoinLeaveHandler.kt#L20

must have forgot a logger call from debugging in there...
fixed in 66229f4
moved that message to DEBUG loglevel and made sure it has a toString