Sort and worflow Status

Scenario :
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Create a page Rubrique
Create 3 sub pages page 1, page 2, page 3.
Publish All
Change manually the order of the 3 pages or with the automatic ranking the behavior should be :
Rubrique page worflow status become red and all sub pages still green

With the 18633 build the behavior is : (1 out of 2 is ok)
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Change manually the order of the 3 pages :
Rubrique page worflow status become red and all sub pages too

Change with the automatic ranking :
It's the right behaviour, rubrique become red and sub page still green

With the 18785 build the behavior is : (none is ok)
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Change manually the order of the 3 pages :
All the pages become red including rubrique

Change with the automatic ranking :
All the pages still green