"permission denied " occurs when not using the system defaut ssh_config path

[BEN-DELSIN-BLACK]

Describe the bug

I set the ssh_config{ ssh_config_file_paths } to a path which is not the system default ssh_config path like "~/.ssh/config".
And "permission denied" occured. I found that it displayed like "aaa@bbb" and "aaa" is the user name of my local machine not the "User" defined in my ssh_config of the remote server.

I copied the same content to "~/.ssh/config" and changed ssh_config{ ssh_config_file_paths }, and then the problem is gone.

So the bug(or if it's normal actually?) is the plugin can't use the correct user name defined in ssh_config when your ssh_config_file_paths is not "~/.ssh/config".

I think the problem is clear easy to reproduce, so forgive me for not providing any other materials, but if necessary, just let me know.