Not that i am aware of. If there are any, they are probably from mediawiki
1.5 and dont work anymore.

One possibility is to set $wgLegacyEncoding to ISO-8859-1, and remove utf-8
from the old_flags field (
https://www.mediawiki.org/wiki/Manual:Text_table#old_flags ), so that
mediawiki thinks they are from pre mediawiki 1.5.

You could also try a query like the following (i have not tested this, use
at your own risk, have backups):
UPDATE text SET `old_text`=convert(cast(cast(`old_text` AS CHAR CHARACTER
SET latin1) AS BINARY) USING utf8) where old_flags not like '%gzip%';

--
Brian

On Sunday, September 11, 2022, Zoran Dori <zorandori4...@gmail.com> wrote:

> Hello Brian,
> it was previously on version 1.31, I've upgraded it to the latest version,
> hoping that it will resolve all issues. :)
>
> I've checked PHPMyAdmin, and they gave me access to it, and it shows the
> same article perfectly fine, without any weird characters, after I've
> changed encoding from latin1 to UTF-8.
>
> But on the wiki itself, a character is shown incorrectly still. Is there
> any way where I can trigger MediaWiki to rebuild the database and show
> things correctly?
>
> Looking forward to your response. :)
>
> Best regards,
> Zoran
>
> суб, 10. сеп 2022. у 01:57 Brian Wolff <bawo...@gmail.com> је написао/ла:
>
>> ä is what you get when you take ä encoded as UTF-8 and interpret it as
>> ISO-8859-1. So what probably happened, is that some text that was encoded
>> as UTF-8 was treated as if it was ISO-8859-1/windows1252 and (unessearily)
>> converted to UTF-8.
>>
>> Common causes of this sort of thing:
>> - Very very old wiki from before MediaWiki adopted UTF-8 that wasn't
>> upgraded properly. (I think MW adopted UTF-8 before MediaWiki 1.5, so it
>> would have to be truly ancient).
>> - Restoring a DB from backup with some wrong options related to charset
>> - converting the charset of DB columns if they were originally mislabeled.
>>
>> If its the entire DB that is broken, I think the easiest fix might be to
>> take a DB dump, and use the iconv command line tool to convert UTF-8 ->
>> windows-1252 (To undo one layer of conversion) and then import the result
>> as if it was UTF-8.
>>
>> --
>> brian.
>>
>>
>> On Thu, Sep 8, 2022 at 3:13 AM Zoran Dori <zorandori4...@gmail.com>
>> wrote:
>>
>>> Hello,
>>> I'm working on one wiki which shows characters in a weird way. UTF-8 is
>>> used for encoding, so I believe that it isn't an issue.
>>>
>>> You can take a look here Statik A – Sub Bavaria (sub-bavaria.de)
>>> <http://www.sub-bavaria.de/w/index.php?title=Statik_A>, so you can
>>> better understand what I'm talking about.
>>>
>>> Could you please point me to something that I should look for, so I can
>>> fix this issue?
>>> Wiki was previously on version 1.31, I've upgraded it to 1.38.
>>>
>>> Thanks for your help and understanding!
>>>
>>> Best regards,
>>> Zoran
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>
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