[Bug 286364] New: Filtering on "List-Post" header does not work on IMAP for new mails.

[Thomas Zell]

https://bugs.kde.org/show_bug.cgi?id=286364

           Summary: Filtering on "List-Post" header does not work on IMAP
                    for new mails.
           Product: kmail2
           Version: 4.7
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: filtering
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: t.zell at gmx.de


Version:           4.7 (using KDE 4.7.3) 
OS:                Linux

A filter on the "List-Post" header never matches for incoming e-mails on IMAP
accounts.

Manually applying the same filter works.

Reproducible: Always

Steps to Reproduce:
1) Set up filter for "List-Post" header
2) receive new mail

Actual Results:  
Filter never matches.

Expected Results:  
Filter matches on mails with corresponding List-Post header.

Excerpt from the filter log:
[21:12:10] Evaluating filter rules: (match any of the following) "List-Post"
<contains> "mailto:bug-control at bugs.kde.org"
[21:12:10] 0 = "List-Post" <contains> "mailto:bug-control at bugs.kde.org" ()

apparently the header is regarded as empty.

Later applying the same filter manually on the same mail gives:
[21:14:33] Evaluating filter rules: (match any of the following) "List-Post"
<contains> "mailto:bug-control at bugs.kde.org"
[21:14:33] 1 = "List-Post" <contains> "mailto:bug-control at bugs.kde.org"
(<mailto:bug-control at bugs.kde.org>)
[21:14:33] Filter rules have matched.

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