Returns UTF-8 for Cyrillic text

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Define Cyrillic text, "Это пример кириллического 
текста".
2. Feed the CharsetDetector with stream to this text.
3. Result charset is "UTF-8" with Confidence 1.0

What is the expected output? 
Charset is koi-8

What do you see instead?
UTF-8

What version of the product are you using? 
Ude, C# port 

On what operating system?
Windows 7/8, x64

Original issue reported on code.google.com by cached.b...@gmail.com on 8 Dec 2012 at 8:19