Description of problem:
dnf download avrdude --source

Version-Release number of selected component:
dnf-0.6.3-2.fc21

Additional info:
reporter:       libreport-2.3.0
cmdline:        /usr/bin/python -OO /bin/dnf download avrdude --source
executable:     /bin/dnf
kernel:         3.17.7-300.fc21.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
posixpath.py:80:join:UnicodeDecodeError: 'ascii' codec can't decode byte 0xc5 in position 23: ordinal not in range(128)

Traceback (most recent call last):
  File "/bin/dnf", line 36, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 182, in user_main
    errcode = main(args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 84, in main
    return _main(base, args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 134, in _main
    cli.run()
  File "/usr/lib/python2.7/site-packages/dnf/cli/cli.py", line 1059, in run
    return self.command.run(self.base.extcmds)
  File "/usr/lib/python2.7/site-packages/dnf-plugins/download.py", line 94, in run
    map(move, locations)
  File "/usr/lib/python2.7/site-packages/dnf-plugins/download.py", line 195, in _move_package
    shutil.copy(location, target)
  File "/usr/lib64/python2.7/shutil.py", line 118, in copy
    dst = os.path.join(dst, os.path.basename(src))
  File "/usr/lib64/python2.7/posixpath.py", line 80, in join
    path += '/' + b
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc5 in position 23: ordinal not in range(128)

Local variables in innermost frame:
a: '/home/jakub.skorepa/Sta\xc5\xbeen\xc3\xa9'
path: '/home/jakub.skorepa/Sta\xc5\xbeen\xc3\xa9'
b: u'avrdude-6.1-2.fc21.src.rpm'
p: (u'avrdude-6.1-2.fc21.src.rpm',)