[BUG] Extra space/invisible Unicode character appended to messages with 7TV enabled

[sn-o-w]

Is there an existing issue for this?

• I have searched the existing issues

This issue exists in the latest nightly version

• I am using the latest nightly version

What browsers are you seeing the problem on?

Chrome

Current Behavior

Sometimes, 7TV adds an extra space at the end of a message.

For example, on this channel: https://twitch.tv/sm0k3r0, if I type !hate valorant, Nightbot will reply with something like:
"Sno_w_ is quite fed up with valorant Madge (80%)"

On random occasions, and only with 7TV enabled, it will send:
!hate valorant ͏
(notice the invisible Unicode character U+034F after the word "valorant"), which results in a double space in the message returned by Nightbot.

You can see this here: https://logs.supa.codes/channel/sm0k3r0/2025/10/30
(Search for " " on the page to more easily highlight these double spaces.)

This is visually irritating.

Expected Behavior

7TV should never add an extra space or the invisible Unicode character (U+034F) at the end of messages.

Steps To Reproduce

Type !hate valorant multiple times on this channel https://twitch.tv/sm0k3r0 and observe that, occasionally, Nightbot's reply contains a double space.

[sn-o-w]

I added an workaround for the !hate command within Nightbot dashboard, something like '$(query)'.replace(/@|[\s\u034F]+$/g,'')

At least now the Nightbot no longer returns the extra space, as you can see here:

But the invisible Unicode character (U+034F), as highlighted in the above screenshot, shouldn't be added by 7TV at all, so the root cause is related to 7TV.

The workaround added within Nightbot should be temporarily. 🤔