Bjørn Erik Pedersen 3b478f50b7 Fix HasMenuCurrent and IsDescendant/IsAncestor when comparing to itself ...

There may be sites in the wild that depends on the faulty behaviour of IsDescendant/IsAncestor when comparing to itself, but

* The documentation and common sense says that a thing cannot be descendant or ancestor to itself.
* The bug introduced in `HasMenuCurrent` comes directly from that confusion.

Fixes #9846

2022-05-28 10:56:54 +02:00

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