How to get combine duplicated user profiles based on an existing field?

Hi there,

I'm using countly-sdk-web and I'm having this issue where it creates a new user profile whenever my user information isn't the same as before. In this case, it creates a separate user profile when the browser and country aren't recognized.

Is there a way to not create a new user profile but to combine the new information into an existing user profile based on a unique identifier (such as email)?