When @-user-mentioning in a group, the user mention link uses the text set for a contact, but not the public name set by that user.
It may be the serious vulnerability risk of exposing of the name of that user.
Steps to reproduce
Let's say the user uses the name "Somebody anonymous", but then I add that user to my contacts and set their name to "John Smith". And now, each time I mention that user in a group chat, their name-link is displayed as "John Smith" for everyone who sees that link, but it should be displayed as "Somebody anonymous".
Log in here to report bugs or suggest features. Please enter your phone number in the international format and we will send a confirmation message to your account via Telegram.