This is not a fake.

Inspect the title element (grouppage_header_name) in the devtools/debugger of your browser.

Any blank or zero width characters would show in the contents of the div container for the header element as html entities.
Example:

" ‏6 "

In this case the groups name would be a hidden character with a 6.

i own group names:
g
y
d
t
p
u
\
/
&
=