Unity GoogleSignIn not worked on iOS with multiple (double) GoogleService-Info.Plist's?

Question

[DaniilMozolevskiy]

In my Unity project, i use multiple Firebase projects, first - for database and remote config, second - for firebase auth.
In my auth logic, i use google sign in and apple sign in.
When i start and play game on Android, it's work correctly, but on iOS, when i click on goole login button, google sign in shows native popup, and if you select google mail account, native popup will hide and then nothing will happen.
I tested it with one GoogleService-Info.Plits and it's work fine, but when a add the second GoggleService-Info.Plist, it's not worked for me.

SignInException: Exception of type 'Google.GoogleSignIn+SignInException' was thrown.