Multiple GPG Private keys

[nash169]

Hi,
I am using pass with multiple GPG key pairs. Basically I have one key pair for the root location (~/.password-store/) and another one for a subfolder within the root location (~/.password-store/subfolder/). Each one has its own .gpg-id.

If understood well from #147 after #375 it should be possible to use multiple keys by concatenating them when exporting:
gpg --export-secret-subkeys -a SUBKEY1! SUBKEY2! > subkey
gpg --export -a SUBKEY1! SUBKEY2! > subkey.pub

Nevertheless, after having imported them, when I try to decrypt I get "Unable to decrypt. Nothing to decrypt or missing private key". When I try to encrypt it works but it seems to be using only the first key no matter if I am in ~/.password-store/ or ~/.password-store/subfolder/.

Am I doing something wrong or I misunderstood #147?

Thanks a lot!