TYPO3 Core

Usecases:

- Records used on other pages have a starttime / endtime set - like news. Here we need to recalculate the livetime of caches for a given cache tag.
(update: in case of 3red party extensions its not easily possible, because we never know how the relation is resolved - maybe we could provide a standard here?)

- tt_content that is used somewhere else by "insert record" functionality. Since this is an editor action we can not relay on TypoScript and TSConfig solution here. So if a tt_content is updated with a starttime / endtime all page caches where that content is used should get a recalculated cache live time.
(Actually this would be needed also for "normal" editing the content record even without starttime / endtime).