[Bug 238994] New: Kolab Imap Message date is not changed on ressource update

[bugs at triller-online.org]

https://bugs.kde.org/show_bug.cgi?id=238994

           Summary: Kolab Imap Message date is not changed on ressource
                    update
           Product: Akonadi
           Version: unspecified
          Platform: Gentoo Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: NOR
         Component: Kolab Resource
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: bugs at triller-online.org
                CC: kdepim-bugs at kde.org


Version:           unspecified (using KDE 4.4.3) 
OS:                Linux

Whenever I change a contact or appointment which are stored in IMAP folders,
Akonadi just updates the content of the Email, but not its date.

Synchronisation programs can make use of the date, as they only need to fetch
the Email headers to determine if something has changed. This is especially
useful for mobile devices where traffic is expensive and slow.

Without updating the date of the email containing the xml file, one needs to
downlaod the full email and build a hash value over the content.

Reproducible: Always

Steps to Reproduce:
1. Create a Contact or Appointment in Kontact/Kaddressbook/Korganizer
2. Select a Kolab Account to store the data
3. An Email appears in the IMAP account, containing the XML file with the
information and the mail has the date of when the contact/appointment was
created
4. Edit the contact/appointment, then sync/fetch the mails again on the IMAP
account


Actual Results:  
Data are changed as expected inside the XML but the date of the Email is still
the old one, not the timestamp of changing the contact/appointment

Expected Results:  
The date of the email containing the xml file should have change to the date of
changing the data.

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