[Pkg-gnupg-maint] Bug#769460: gnupg2 2.1.0-1 --refresh-keys breaks with dirmngr < 2.1.0-1

[Sven Hesse]

Package: gnupg2
Version: 2.1.0-1
Severity: normal

>From what I can figure out by googling, for gnupg 2.1, dirmngr is
mandatory for --refresh-keys. Without it, that operation fails.

And it also doesn't seem to like dirmngr < 2.1.0-1 at all, again
failing (with the error "IPC connect call failed").

I hadn't thought about checking for a higher version to dirmngr
until dkg told me it recommends this version. Yes, with dirmngr
2.1.0-1, it works. Well, apart from an apparently known and fixed
upstream bug that --refresh-keys fails with "Too many objects"
(<http://web.archiveorange.com/archive/v/2TGPMrmEQ8Qf4Fpiwett>,
 <https://bugs.g10code.com/gnupg/issue1755>).

Not quite sure if something should be done about it. Set a hard
dependency on dirmngr >= 2.1.0-1 instead of a recommendation?
Add a conflicts dirmngr < 2.1.0-1? Or is it just a user error on
my part?

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.17.2 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gnupg2 depends on:
ii  dpkg           1.17.21
ii  gnupg-agent    2.1.0-1
ii  install-info   5.2.0.dfsg.1-5
ii  libassuan0     2.1.2-2
ii  libbz2-1.0     1.0.6-7+b1
ii  libc6          2.19-13
ii  libgcrypt20    1.6.2-4
ii  libgpg-error0  1.17-2
ii  libksba8       1.3.1-1
ii  libreadline6   6.3-8+b1
ii  zlib1g         1:1.2.8.dfsg-2

Versions of packages gnupg2 recommends:
ii  dirmngr  2.1.0-1

Versions of packages gnupg2 suggests:
pn  gnupg-doc   <none>
pn  parcimonie  <none>
pn  xloadimage  <none>

-- no debconf information