TYPO3 Core

Hi,
we're trying to provide a news Linkhandler like in this tutorial: https://usetypo3.com/linkhandler.html

But when we're inserting the tsconfig by using the following script in `Configuration/TCA/Overrides/pages.php`:

```
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::registerPageTSConfigFile(
'theme_paperclip',
'Configuration/PageTS/Linkhandler/tx_news_news_typo3-8.typoscript',
'Linkhandler configuration for News (TYPO3 8.7)'
);
```

..the link in frontend isn't rendered. The news-link in backend is selectable in RTE and everything else works fine.

When we paste the content of the `Configuration/PageTS/Linkhandler/tx_news_news_typo3-8.typoscript` directly into the tsconfig field of our root page, the link is rendered in frontend.
So, it seems that `registerPageTSConfigFile` doesn't provide always the contained ts config.