Looks to me like the problem is with the thing that generated/sent this NICK command, *not* the server that's parsing and logging it (e.g. Server_Work() in load/ircd/server.js). But I think Cyan should be the one to dig into this deeper, not me.
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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
From Randy Sommerfeld@VERT to GitLab note in main/sbbs on Sat Jul 8 03:26:14 2023
This is expected behaviour as we transition from the old NICKIP interserver capability to NICKIPSTR (frugalbb.synchro.net in the example above is running ircd 1.3)
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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
From Randy Sommerfeld@VERT to GitLab issue in main/sbbs on Sat Jul 8 03:26:14 2023