XF 1.2 Username - smiles

I have never seen this before but I had a user sign up with a smiley face in their username. Is there a way to not have the option not to do so?

 

Just for reference - what is the actual username they registered with (copy and paste from ACP)?

 

Yes- just one smile at the end of her username. But it was an actual Xenforo smile.

 

Her name and a smile literally. In the ACP as well.

 

Ah, okay, so as @Chris Deeming suggested above - using ALT+no. - for example:

ALT+1 = ☺
ALT+2 = ☻
ALT+3 = ♥
ALT+4 = ♦

Etc.?

I assume this is something @Mike would need to look at for a future fix (non-standard characters allowed in username)?

 

This will keep it to characters and spaces:
http://xenforo.com/community/threads/new-forum-member-has-username-with-emoji.55087/#post-587107