TYPO3 Core

I figured out that the default TYPO3-sitemap with menu-type "section-index" (for the current page) does not work with content-elements refered using templa-voila.

What I did:

I have a source-page with content-elements (in my case simple text with headlines). The source page also has a sitemap with "section-index" in it, that works fine!

I want to use the same contents in another page in my page-tree using the templaVoila referencing feature for contents. So on the target-page I tried different options for this.

1) using Tab: Options -> "Show contents from this page instead" option
2) using Tab: Extended -> Content [showing my columns defined in TemplaVoila with element-browser]

I didn't figure out how to make it work. It makes no difference if the sitemap-content is local in my target page or also referenced using the features mentioned above. The Sitemap simply keeps empty just showing it's headline that I defined into the content-element "sitemap".

I cannot provide a patch yet. Does anyone have a clue / patch for this?
(issue imported from #M15592)