hg: openjfx/10-dev/rt: 8178418: TextArea/TextField: Undo removes entire text at once

[ajit.ghaisas at oracle.com]

Changeset: f7d38650fa15
Author:    aghaisas
Date:      2017-10-12 14:56 +0530
URL:       http://hg.openjdk.java.net/openjfx/10-dev/rt/rev/f7d38650fa15

8178418: TextArea/TextField: Undo removes entire text at once
Reviewed-by: kcr, aghaisas
Contributed-by: ambarish.rapte at oracle.com

! modules/javafx.controls/src/main/java/javafx/scene/control/TextInputControl.java
! modules/javafx.controls/src/test/java/test/javafx/scene/control/TextInputControlTest.java