wrong avatar rendered for specific email

[GretaD]

Describe the bug

i have 2 users kim.polmann and jenna.kim
a user has 2 email addresses, one is name.surname, and one is [email protected] uid is the first name of a user(in most cases)
When the email is sent on [email protected], the avatar of jenna is shown, but should be the avatar of Kim instead. Please noticed that one user has her first name kim, and the other user has her surname kim.

Steps to reproduce

1. Go to contacts and make sure you have 2 users where the name and the surname of them are the same. add 2 addresses for them, name.surname@email and only name@email.
2. Go on mail app and send an email to the name@email
3. See the email you received on mail app and if the avatar is rendered correctly

Expected behavior

the avatar is shown correctly

Actual behavior

the avatar of the user with the surname as the first name of the other user, is shown.

Contact version

No response

Operating system

No response

PHP engine version

None

Web server

None

Database

None

Additional info

No response