On Satellite v 5.6, while syncing channels from RHN satellite-sync command fails with "'ascii' codec can't decode byte 0xc3 in position 47: ordinal not in range(128)"

Issue

• On Satellite v 5.6 while syncing channels from RHN satellite-sync command fails with bellow error:

SYNC ERROR: attempting to display as much information as possible:
(Check logs/email for potentially more detail)
UnicodeDecodeError('ascii', 'IntegrityError: llave duplicada viola restricci\xc3\xb3n de unicidad \xc2\xabrhn_dcm_id_pk\xc2\xbb\n\n', 47, 48, 'ordinal not in range(128)')
'ascii' codec can't decode byte 0xc3 in position 47: ordinal not in range(128)

and an email with this content:
13:22:06 SYNC ERROR: attempting to display as much information as possible:

Exception reported from satellite.example.com
Time: Thu Oct 10 13:22:06 2013
Exception type <type 'exceptions.UnicodeDecodeError'>

Exception Handler Information
Traceback (most recent call last):
  File "/usr/bin/satellite-sync", line 168, in <module>
    sys.exit(abs(main() or 0))
  File "/usr/bin/satellite-sync", line 160, in main
    systemExit_exception(6, msg, e)
  File "/usr/bin/satellite-sync", line 117, in systemExit_exception
    tb = header + fetchTraceback()
  File "/usr/lib/python2.6/site-packages/spacewalk/common/rhnTB.py", line 190, in fetchTraceback
    severity=None, with_locals=with_locals)
  File "/usr/lib/python2.6/site-packages/spacewalk/common/rhnTB.py", line 150, in Traceback
    ostream.write("%s\n" % exc.getvalue().encode('utf-8'))
  File "/usr/lib64/python2.6/StringIO.py", line 270, in getvalue
    self.buf += ''.join(self.buflist)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 47: ordinal not in range(128)