zabbix 1.8.1 invalid byte sequence for encoding

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Hi!

I run zabbix 1.8.1 with backend db postgresql 8.4.2 (utf encoding) and found the following misbehaviour:

parsing agent configuration file zabbix_agentd.conf (on windows systems), zabbix doesn't cut off comments if they are placed after values in the same string. e.g.:

# Unique hostname. Required for active checks.
Hostname=btc-xxx-xx # Указать имя хоста, на который установлен агент.

is parsed and appears in sql logs like

select hostid from hosts where [B][I]host='btc-xxx-xx # сЙЮГЮРЭ ХЛЪ УНЯРЮ, МЮ ЙНРНПШИ СЯРЮМНБКЕМ ЮЦЕМР.'[/I][/B] and proxy_hostid=0 and hostid between 000000000000000 and 099999999999999

and rise postgres error

invalid byte sequence for encoding "UTF8": 0xd3ea