Is git am supposed to decode MIME?

[Florian Weimer]

The git am documentation talks about “mailboxes”.  I suppose these 
contain messages in Internet Mail syntax.  Is git am supposed to decode 
MIME?

I'm asking because I have a message whose body is encoded as 
quoted-printable, but git am does not parse the patch contained in it.

If git am is supposed to deal with this, I'll dig deeper and try to 
figure out where things go wrong.

Thanks,
Florian