Problems with special characters (umlauts) in user names

[hagman]

Users with non-ASCII characters in their name (apparently the CN attribute, not the SamAccountName) produce an error message like the following:

@] Error while processing row for user Möller, Max [@] 'ascii' codec can't encode character u'\xf6' in position 15: ordinal not in range(128)

Presumably these users are also excluded from the password hash check itself