For a local Mediawiki with a Wikibase Extension I want to adjust the string length limit.

What I already did:

I adjusted the legth in the LocalSettings.php:

$wgWBRepoSettings['string-limits'] = ['multilang' => ['lenght' => 500,],];

I altered the Database:

ALTER TABLE `page` MODIFY `page_title` VARCHAR(500);

And I ran all maintanance scripts.

When I try to make new labels the error message is still, that the limit to the label is 250 – the standard.

UPDATE:

I now found, that with the wikibase extension the lable of the entities ist not in the page-Table but rather in the wbt_text Table under the wbx_text Field. I changed the varbinary Limit here, ran the maintanance scripts but it still does not work.

Any ideas how to change that?