TYPO3 Core

inside a menu rendering (tt_content.menu.20.8) I want to access my own field tx_myext_logo, declared similar to media (it only allows one image to be selected) in typoscript.

tt_content.menu.20.8 {
  :
  2.NO.stdWrap.innerWrap {
    cObject = COA
    cObject {
      :
      20 = FILES
      20 {
        references {
          table = pages
          uid.data = field:uid
          fieldName = tx_myext_logo
          maxItems = 1
        }
        renderObj = TEXT
        renderObj.data = file:current:publicUrl
      }
      :
    }
  }
}

This works well for the default language.
as the assigned logo can not change for other languages there (normaly) is no definition for that field in pages_languages_overlay (and no settings in [FE][pageOverlayFields]) and the rendering should access the logo defined in pages.
But it does not work this way.
The behaviour for non-default-language is: no image (url)

For testing I created the field tx_myext_logo also in pages_langauge_overlay and assigned for one page an image: for that page the image (url) is shown independent from any settings in [FE][pageOverlayFields], all other pages still have no image.

This image even is shown after removing the TCA definition for the pages_language_overlay field until the field is renamed/removed.

The handling of fields in FILES needs a proper translation/overlay handling or additional selectors for languages.