[[!comment format=mdwn
 username="http://svario.it/gioele"
 nickname="gioele"
 subject="GPG_AGENT_INFO was already set in the outside shell"
 date="2014-07-11T07:19:45Z"
 content="""
I found what the problem is: GPG_AGENT_INFO was already set in the outside shell.

Unsetting GPG_AGENT_INFO fixes the problem.
"""]]
