Excessive chat join messages

There are now since 2.4.2 unnecessary messages displayed from chat:
joined global chat channel [number]
joined trade chat channel [number]
There is no need for them. I don't care about and find them disturbing.
I just joined highgate then went back to hideout and got everytime those 2 extra lines.
Before there was only entered highgate and entered hideout and and that was okay.

Plus another bug, who uses trade chat 89 even, wouldn't be better to restrict this number to 1-8 or so if it has to be random?

Bug: 1,243,781,576 (probably not needed, it's obvious).
Screenshot: