Different issue, but I have a few problems with `gpg --card-edit`:

1.  I can't seem to be able to change the PIN with any pinentry but
pinentry-gtk-2:

- With pinentry-emacs:
> Error changing the PIN: No pinentry
- With pinentry-tty:
> Error changing the PIN: End of file
- With pinentry-curses:
> Error changing the PIN: No such file or directory

2. After transfering my encryption key and my authentication key, `gpg
--card-edit` segfauls:

--8<---------------cut here---------------start------------->8---
> gpg --card-edit
Reader ...........: Nitrokey Nitrokey Start (FSIJ-1.2.6-67143146) 00 00
Application ID ...: D276000124010200FFFE671431460000
Version ..........: 2.0
Manufacturer .....: unmanaged S/N range
Serial number ....: 67143146
Name of cardholder: [not set]
Language prefs ...: [not set]
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: forced
Key attributes ...: rsa2048 rsa2048 rsa2048
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 3 3
Signature counter : 0
Signature key ....: [none]
Encryption key....: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX 
      created ....: 2015-09-26 19:12:48
      keygrip ....: 
gpg: signal Segmentation fault caught ... exiting
segmentation fault
--8<---------------cut here---------------end--------------->8---

gpg's fault?

-- 
Pierre Neidhardt