User-Agent:       Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.21 (KHTML,
like Gecko) konqueror/4.14.10 Safari/537.21
Build Identifier: 

I noticed the problem, because I could not open KDEWallet (uses GPG
encryption).

Here's some output:
 --- cut here ---
% gpg --list-keys rickert
gpg: key specification 'D80CB5EF2D9FCB98FF88604BC2781C1A46B1EFE1' is ambiguous
gpg: (check argument of option '--encrypt-to')
gpg: 'D80CB5EF2D9FCB98FF88604BC2781C1A46B1EFE1' matches at least:
gpg:   D80CB5EF2D9FCB98FF88604BC2781C1A46B1EFE1
gpg:   D80CB5EF2D9FCB98FF88604BC2781C1A46B1EFE1
 --- cut here ---

That's bogus ambiguity.  Maybe it is finding the same key twice, perhaps
because an earlier gpg2 version insisted on copying keys to another place.

I've flagged this as "critical" since I lose access to kdewallet.

Reproducible: Always