with the changes in 22w17a to chat packets, and the separation of player and system chat, commands that previously sent a uuid of the sender

• /me
• /say
• /msg

now no longer do so.

as the uuid sent is relied on for hiding messages, this now no longer affects them

note: this likely also affects team msg, but was untested

reproduction steps:

1: chat from 2 shown
2: hi
2: /say hi
2: /me hi
2: /msg 1 hi
1: chat from 2 hidden
2: hi
2: /say hi
2: /me hi
2: /msg 1 hi

expected behaviour:

all messages after 1 hiding the chat from 2 to be hidden

actual behaviour:

all three command based messages are shown