On our Sitecore 8.1 Update-2 site we have configured two languages:

* English
* German (which should fallback to English)

So we have configured language fallback and it works as it should. We have also configured the `sitecore_master_index` to enable language fallback as described [here](https://doc.sitecore.net/sitecore_experience_platform/setting_up__maintaining/language_fallback/setting_up/configure_language_fallback).

If my item only has 1 version in English and I rebuild the whole index, I see this item now twice in the search index (one item in English and one Item in German) with exactly the same content. This is exactly what I expect it to be.

Today I have updated to Sitecore 8.1 Update-3 (due to a bug with public reference number 109119, see [Release Notes](https://dev.sitecore.net/Downloads/Sitecore%20Experience%20Platform/Sitecore%2081/Sitecore%20Experience%20Platform%2081%20Update3/Release%20Notes)). But when I now rebuild my index, I only have one item version in the index (in English). The item version which is fallbacked (German) is not added to the index.

Did something change between Update-2 and Update-3? Or do I misunderstand how this should work? How can I be sure that both versions are in the index? The Sitecore API etc. always returns me correct versions and the fallback works.