Emojis in topic titles and URLs?

[Pseudonym]

I'm not sure whether this is a bug or not, but it sure looks odd to me...

It seems users are able to insert emojis into topic titles (which irritates me as an admin, but it's not the end of the world). But what's much stranger, is that the emojis are then also included in the URL! I didn't know that was even possible! 

That's surely going to cause all sorts of issues. Can we turn this off?

[Apfelstrudel]

Emojis are not special characters or images, they are standard characters like normal letters. That means they can also be used for URLs. I know it looks odd but doesn't cause any problems. Don't worry.

[marklcfc]

I got this