When I want to clear my passphrase (because my hard disk is anyhow encrypted),
after leaving the corresponding fields empty and klicking on 'OK' I get a
warning that this is not a good idea etc. This is all good and well. But when I
then klick on "Yes, protection is not needed", the pinentry for setting the
passphrase is again shown instead of accepting that I actually do not want a
passphrase. After 3 or so attempts gnupg finally accepts my decision.

The same happens when setting a not secure enough passphrase (i.e. no numbers)
and klicking on 'Take this one anyway'.

This behavior is really confusing.