Sigil breaks encoding/formatting

What steps will reproduce the problem?
0. Open epub in Adobe Digital Editions and load the file (in attachment) to see 
how the front page should look like (after the cover page) It should display 
something like ( GREG EGAN, KWARANTANNA, CZĘŚĆ PIERWSZA) 
1. Open sigil and load epub file 
2. Save file in Sigil (do not make any changes)
3. Open epub file again in Adobe Digital Editions and look a the first page. It 
will look like GREG EGAN, KWARANTANNA, CZ??? PIERWSZA (question marks instead 
of polish letters). What is more, the formatting gets broken (text-indents, 
margin-bottom space..)
...

What is the expected output? What do you see instead?
Sigil preserves correct encoding and formatting

What version of the product are you using? On what operating system?
Sigil-0.4.0β3-Windows-Setup.exe
Windows XP

Issue does not occur for version Sigil-0.3.4b-Windows-Setup.exe

Please provide any additional information below. If your source file
(SGF/EPUB/HTML/etc) is required to fully understand the problem, please
attach it to this issue. Read the ReportingIssues wiki page before
submitting!

Original issue reported on code.google.com by grzech...@gmail.com on 31 Mar 2011 at 7:25

Merged into: #736

Attachments:

[Kwarantanna - Egan Greg.epub](https://storage.googleapis.com/google-code-attachments/sigil/issue-831/comment-0/Kwarantanna - Egan Greg.epub)

1080linebooks / sigil

Sigil breaks encoding/formatting #831