Given it's just in the examples folder it seems strange to remove it, given it doesn't hurt those who don't want to use it, but it's obviously useful to those who want to. But even then, until it's there, why not fix these 2 lines? It's just a config item that will work everywhere

Because of policy requirements I have.

It is on the same machine, as I mentioned manually deleting ~/.gnupg/private-keys-v1.d/* is a workaround I have to use, but it is not very user friendly.

The use case is having 2 different hardware tokens - I have an opengpg card which supports 4096 rsa subkeys, and a yubikey which supports 2048 rsa subkeys. At work I need one, at home the other.

Hi, currently to be able to use 2 different cards with 2 different sets of subkeys from the same primary key (home and work) I need to manually delete ~/.gnupg/private-keys-v1.d/* everytime I want to switch from the first card to the second.

@gniibe yes, I can reproduce the problem using -u.
But why does picking a UID force the usage of the first known subkey? Is that expected behaviour? Is there a relationship between UIDs and subkeys?

@gniibe: I've tested 2.1.22 (from Debian experimental) and, while gpg --sign works, other programs (eg: git tag -s) still prompt to insert the card of the first signing subkey, despite the card with the second signing subkey being present.
Is that expected?