After updating yum-rhn-plugin to version yum-rhn-plugin-0.5.4-22.el5 , "yum -C" fails with error "TypeError: iteration over non-sequence "

Issue

• After updating yum-rhn-plugin to version yum-rhn-plugin-0.5.4-22.el5 , "yum -C" fails with following error

  # yum -C repolist
  Loaded plugins: downloadonly, rhnplugin, security
  Traceback (most recent call last):
    File "/usr/bin/yum", line 29, in ?
      yummain.user_main(sys.argv[1:], exit_code=True)
    File "/usr/share/yum-cli/yummain.py", line 309, in user_main
      errcode = main(args)
    File "/usr/share/yum-cli/yummain.py", line 178, in main
      result, resultmsgs = base.doCommands()
    File "/usr/share/yum-cli/cli.py", line 349, in doCommands
      return self.yum_cli_commands[self.basecmd].doCommand(self, self.basecmd, self.extcmds)
    File "/usr/share/yum-cli/yumcommands.py", line 954, in doCommand
      if nm_len < utf8_width(rname):
    File "/usr/lib/python2.4/site-packages/yum/i18n.py", line 216, in utf8_width
      for (ucs, bytes) in __utf8_iter_ucs(msg):
    File "/usr/lib/python2.4/site-packages/yum/i18n.py", line 172, in __utf8_iter_ucs
      for byte0 in uiter:
    File "/usr/lib/python2.4/site-packages/yum/i18n.py", line 168, in __utf8_iter_ints
      for byte in to_utf8(msg):
  TypeError: iteration over non-sequence