TYPO3 Core

Hey guys,

I have noticed, that the commit [[https://github.com/TYPO3/TYPO3.CMS/commit/ae722d641e]] breaks the generation of the second level of my menu for all non-default languages.
I am using fallbackType: free for all non-default languages. As soon as I switch to fallbackType: strict, the issue disappears.

This is my current site config:

rootPageId: 1
base: /
baseVariants: {  }
languages:
  -
    title: 'English (Default)'
    enabled: true
    languageId: '0'
    base: /us/
    typo3Language: default
    locale: en_US
    iso-639-1: en
    navigationTitle: ''
    hreflang: ''
    direction: ''
    flag: global
  -
    title: Deutsch
    enabled: true
    languageId: '2'
    base: /de/
    typo3Language: de
    locale: de_DE
    iso-639-1: de
    navigationTitle: ''
    hreflang: ''
    direction: ''
    fallbackType: free
    fallbacks: '0'
    flag: de
errorHandling: {  }
routes: { }
routeEnhancers:
  PageTypeSuffix:
    type: PageType
    default: '/'
    index: '/'
    map:
      '/': 0

Typoscript for menu:

    temp.footerNav = HMENU
    temp.footerNav {

    special = directory
    special.value = 1

    wrap = <ul class="main-links">|</ul>

    1 = TMENU
    1 {
        expAll = 1
        NO {
            allStdWrap.insertData = 1
            wrapItemAndSub = <li>|</li>
            wrapItemAndSub.override = <li class="is-visible-mobile">|</li>
            wrapItemAndSub.override.if {
                value = 32
                equals.field = uid
            }
        }
    }
    2 = TMENU
    2 {
        wrap = <ul class="sub-links">|</ul>
        NO {
            doNotLinkIt = 1
            wrapItemAndSub = <li>|</li>
            stdWrap.cObject = CASE
            stdWrap.cObject {
                key.field = doktype
                default = TEXT
                default {
                    typolink.parameter.field = uid
                    typolink.allStdWrap.insertData = 1
                    stdWrap.field = nav_title // title
                }
            }
        }
    }
}

The following HTML is being generated:

<ul class="main-links">
 <li><a href="/de/was/">Was</a></li>
 <li><a href="/de/wie/">Wie</a></li>
</ul>

The following HTML should be generated:

<ul class="main-links">
 <li><a href="/de/was/">Was</a><ul class="sub-links"><li><a href="/de/was/A/">Was A</a></li><li><a href="/de/was/B/">Was B</a></li></ul></li>
 <li><a href="/de/wie/">Wie</a></li>
</ul>