Methods buildNotification and tagNotification returns a traceback:

Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/koji/daemon.py", line 1294, in runTask
response = (handler.run(),)
File "/usr/lib/python3.7/site-packages/koji/tasks.py", line 313, in run
return koji.util.call_with_argcheck(self.handler, self.params, self.opts)
File "/usr/lib/python3.7/site-packages/koji/util.py", line 263, in call_with_argcheck
return func(args, *kwargs)
File "/usr/sbin/kojid", line 5150, in handler
server.sendmail(from_addr, recipients, message)
File "/usr/lib64/python3.7/smtplib.py", line 855, in sendmail
msg = _fix_eols(msg).encode('ascii')
UnicodeEncodeError: 'ascii' codec can't encode character '\u0159' in position 659: ordinal not in range(128)