TYPO3 Core

Option split value should be COMMON for ALL menu items in the same level.
If the item state is CUR or ACT, the option split is useless,
Because there is just ONE item/ menu

IF the option calculation could base on ALL items item in the
Same menu level the option split could be used also for CUR and ACT,
When for examle

FIRTST ITEM | some item | another item | LAST ITEM
Would work even if the LAST item would be in the state CUR.

Because option split is useless for ACT and CUR, in menu, which use
Separators BETWEEN items but not for the last item, it is not possible
To use CUR and ACT in certain menues.

(issue imported from #M1148)