hg: openjfx/jfx-dev/rt: 8197846: ComboBox: becomes unclickable after removal and re-adding

[ambarish.rapte at oracle.com]

Changeset: 8451c9f32969
Author:    arapte
Date:      2018-08-03 17:01 +0530
URL:       http://hg.openjdk.java.net/openjfx/jfx-dev/rt/rev/8451c9f32969

8197846: ComboBox: becomes unclickable after removal and re-adding
Reviewed-by: kcr, fastegal

! modules/javafx.controls/src/main/java/javafx/scene/control/skin/ColorPickerSkin.java
! modules/javafx.controls/src/main/java/javafx/scene/control/skin/ComboBoxListViewSkin.java
! modules/javafx.controls/src/main/java/javafx/scene/control/skin/ComboBoxPopupControl.java
! modules/javafx.controls/src/main/java/javafx/scene/control/skin/DatePickerSkin.java
+ tests/system/src/test/java/test/robot/javafx/scene/ColorPickerTest.java
+ tests/system/src/test/java/test/robot/javafx/scene/ComboBoxTest.java
+ tests/system/src/test/java/test/robot/javafx/scene/DatePickerTest.java