[detach_attachments] Problem with charset encoding in download page

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Token: 4c8bcf92cd572c56a6b2c0135ec220ea (Don't modify this token!)
Version: 2.3.22 (03-04-2014)
PHP: 5.3.3
RCMAIL: 1.0.1
Database: mysql
SERVER: Apache
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I.  Issue Description:

Bad encoding non-latin characters in the page with the link to download the 
attachment. Localization text ($labels['expires']) and filename are displayed 
with bad characters - e.g. '?' instead of 'č'. 

II. Steps to reproduce the Issue:
1. Send file with UTF-8 characters (e.g. 'žluťoučký_kůň.pdf') that exceed 
the cum_upload_default value
2. On the receiver side click to view HTML attachment 
(žluťoučký_kůň.pdf.html)
3. Link to file looks like '?lu?ou?ký_k??.pdf'
4. After clicking the link, it presents a dialog to save the file and there is  
file name with correct encoding (žluťoučký_kůň.pdf).

Original issue reported on code.google.com by on...@tachec.org on 16 May 2014 at 6:53

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Original comment by roland.l...@gmail.com on 17 May 2014 at 6:22

• Changed state: Fixed

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The file name is displayed correctly now, but text localization provided by 
label $labels['expires'] is still displayed wrong.

Original comment by on...@tachec.org on 19 May 2014 at 6:09

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Original comment by roland.l...@gmail.com on 19 May 2014 at 10:40

• Changed state: Re-Opened

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Original comment by roland.l...@gmail.com on 29 May 2014 at 5:04

• Changed state: Fixed