hg: openjfx/12-dev/rt: 8205092: NullPointerException in PickResultChooser.processOffer when using viewOrder

[kevin.rushforth at oracle.com]

Changeset: c8bb215eb1a5
Author:    kcr
Date:      2019-01-30 14:33 -0800
URL:       http://hg.openjdk.java.net/openjfx/12-dev/rt/rev/c8bb215eb1a5

8205092: NullPointerException in PickResultChooser.processOffer when using viewOrder
Summary: Added dirty check for viewOrderChildren
Reviewed-by: kcr, aghaisas
Contributed-by: wookey.dean at gmail.com

! modules/javafx.graphics/src/main/java/javafx/scene/Parent.java
! modules/javafx.graphics/src/test/java/test/javafx/scene/ParentTest.java