gpa fails to deal with my key: Invalid crypto engine

[Also posted here:
  http://wald.intevation.org/forum/forum.php?thread_id=988&forum_id=27

Hello,

gpa appears to be incapable of doing anything with my key.
To demonstrate the problem, run these commands:
(src/gpa was just built from git on Fedora 15: gpa-0.9.0-15-g71cfe73)

    gpg --keyring test --import \
      <(wget -O - http://meyering.net/key/000BEEEE.gpg)
    src/gpa --keyring=test

The main window appears, but also a "GPA Error" window, which says:

    The GPGME library returned an unexpected
    error. The error was:

    Invalid crypto engine

    This is probably a bug in GPA.
    GPA will now try to recover this error.

    CLOSE

When I hit the CLOSE button, that window
disappears, but it is immediately replaced by
an identical one.  That means I can never (afaik)
manage to use the main window.