Package: scdaemon
Version: 2.2.27-1
Severity: important
Tags: patch upstream
X-Debbugs-Cc: f...@obfusk.net

Hi!

After upgrading gnupg from 2.2.20-1 to 2.2.27-1 my smartcard reader --
a SCM SPR332 -- is broken.  Specifically:

* I'm using the reader's keypad to enter my PIN.

* The first time I need to enter my PIN, everything works fine.

* Subsequent times result in a "verify CHVx failed: Invalid value".

The cause seems to be upstream commit [1].

I've attached a patch that partially reverts that commit, which fixes
the problem for me.

I intend to report this upstream as soon as my bug tracker account is
approved.

- Felix

[1] https://dev.gnupg.org/rG11d8d1e0505645f7d14bcc1c01d17a566e033705

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