Set server_locale in iw.cfg to UTF-8. Upon restarting teamsite, it inserts a line setting it back to Latin1.
Before restart:
[iwserver]
server_locale=English_UnitedStates.UTF-8@Default;
After restart:
[iwserver]
server_locale=English_UnitedStates.Latin1@Default;
server_locale=English_UnitedStates.UTF-8@Default;
This is munging any character with diacritics, which is **** our install big time.