[Bug 281227] KMail2 4.7's "Find messages ..." reproducibly fails to search: "Unknown error. (Unable to create persistent search)"

[Ralph Moenchmeyer]

https://bugs.kde.org/show_bug.cgi?id=281227

--- Comment #26 from Ralph Moenchmeyer <rm at anracon.de> ---
(In reply to comment #25)
> 
> It sounds like while some other pretty serious bugs are still there, this
> PARTICULAR bug ("Unknown error" dialog box) is fixed in 4.8 for you, after
> you have deleted and re-added your resources. Can you confirm this?

I changed to KDE 4.8.1 meanwhile (packages from Opensuse's KDE Release
Repository). I did not delete my IMAP resources and reattach it to
Akonadi/Kmail when I changed from KDE 4.8.0 to 4.8.1.
So, right now I can only confirm that the search dialog again gives me the
choice to select a folder to search in together with the option to include
subfolders in the search. Now the search dialog looks similar again as it was
for older KDE 4 versions with KMail 1.X.  

I tried a search for emails with a certain customer name as part of the FROM
field (= sender's email address). I checked that such mails were located
somewhere in the subfolders. This search did not work correctly. It did not
return any hit. However, this may have to do with an incorrect or incomplete
update of nepomuk's database during my steps from 4.8.0 to 4.8.1. 

Therefore, I shall perform the following experiments: I shall delete and
reconfigure my IMAP access. I shall wait until the nepomuk/ virtuoso-t load on
the cpu is back to almost zero - which may take some time. Then, I shall try a
search with single and combined criteria for mails in the email folder
structure and see if that works correctly. 

If this does not work as expected: I shall again delete the IMAP resource and
in addition delete all Nepomuk folders and configuration files in ~/.kde4. Then
I shall setup the IMAP connection again within Kmail and try some email
searches again.   

So please be patient - it may take some time. But I promise to report the
results as soon as I have them.

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