TYPO3 Core

My customer requires og:image working on all pages. I tried to fetch the og_image from rootpage (og_image reference).

But it doesn't seem to work on subpages (only rootpage).

og:image {
    required = 1
    attribute = property

    cObject = FILES
    cObject {
        maxItems = 1
        # Notice:
        # og_image has been added to $GLOBALS['TYPO3_CONF_VARS']['FE']['addRootLineFields'] .= ',og_image';
        references.data = fullRootLine: 0, og_image

        renderObj = COA
        renderObj {
            10 = IMG_RESOURCE
            10 {
                file {
                    import.data = file:current:uid
                    treatIdAsReference = 1

                    width = 1200
                    height = 630c
                }

                stdWrap {
                    typolink {
                        parameter.data = TSFE:lastImgResourceInfo|3
                        returnLast = url
                        forceAbsoluteUrl = 1
                    }
                }
            }
        }
    }
}

Btw. twitter:image works fine the same way - even without having to add it to addRootLineFields!

I think there might be a bug or something?! Did not figure out either in TypoScript nor PHP/Core stuff where it stucks.