Importing an off-card backup of the encryption key of a Nitrokey fails with "no user ID"

[Ralf]

> There is no tool yet to do this.  Let's track this at
> https://dev.gnupg.org/T3466

thanks, good to know I wasn't missing something obvious here.

An option for "--import" sounds great, that was what I was looking for 
intuitively, something that would allow me to specify the user id / the 
hash of the public key.

I am curious, from a user-perspective, couldn't GnuPG be trying to be 
very helpful with importing the secret key and "just do the right thing" 
and scan if there is a matching public key in the keyring?

Greetings,

Ralf