Bug - @mentions selector opens on e-mail address typing

[Dherlou]

Security Issue Confirmation

• I confirm this is not a security-related issue

Issue Search Confirmation

• I have searched for existing issues and found none that match this problem

Server Operating System

Ubuntu 22.04 LTS

Browser

Brave

Znuny Version

7.2.3

Database Type

MariaDB 10.3+

Expected Behavior

I would not expect the mentions selector opening itself when typing an e-mail address (i.e. after typing another character after the @).
GitHub (software) seems to only open the mentions selector when there is either no character in front of the @ (i.e. BOL) or some kind of whitespace. IMO, this should also be the behavior in Znuny.

Actual Behavior

When our agents type an e-mail address, the mentions selector opens and kind of blocks the view.

Steps to Reproduce

1. answer an arbitrary ticket
2. type an e-mail address like a.b@c.d
3. the mentions selector opens when typing the c after the @

Error Messages

No response

Additional Information

As a workaround, I changed the mentions trigger word to an additional @, i.e.:

• @@ for individuals
• @@@ for groups
  However, this is kind of unintuitive as most software uses a simple @ for tagging.

Screenshots

[rkaldung]

Internal issue 1301