TYPO3 Core

Hello developers!

I do not understand the following!

In an installation with TYPO3 version 6.2.12, I import via the "ext_localconf.php" my extension a TS template which is a function of an installed extension.

if ( \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('indexed_search', $exitOnError = FALSE) ) { # Setup
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTypoScript($_EXTKEY,
'setup','<INCLUDE_TYPOSCRIPT: source="FILE:EXT:blaaaaaa/Resources/Private/Extensions/indexed_search/Setup.ts">',
defaultContentRendering
);
}

If I now in the "Template Analyzer" click on the "EXT css_styled_content/static/" and all the way down sroll - after css_styled template, the embedded TS-Template will appear twice in a row?

And from the TYPO3 version 7.2.0 not only my TS-Template will appear twice in a row, but also all loaded System-Extension Templates!

I have also checked in a basic installation with no additional configurations. See it in the supplied images.

Is that normal?

Thank you

Harald