Messages containing multiple hash signs results in spam / freeze

[Crotalus]

Describe the bug
If you send a message to a channel / user containing multiple words with #-sign the result is messed up and if there is too many #words in a single message it will end up freezing the client. I haven't tried sending such a message to #aeolus but I suspect it could freeze every user on the channel running the java client

To Reproduce
Send a string like #spam #spam #spam #spam #spam #spam #spam #spam to a channel to see the spam problem
Send #spam #spam #spam #spam #spam #spam #spam #spam #spam #spam #spam #spam #spam #spam #spam to see the freeze problem

Expected behavior
The string #spam #spam #spam #spam #spam #spam #spam #spam

Screenshots

OS
Windows, client v.1.50