FYI, the manual you linked to and the designer pop-up explain that values only are affected by the persistent preference
Persistent : States that the value set on the property should be saved, and loaded when the view first opens. This effectively allows you to determine the initial value on a property when the view opens. While the property is enabled by default, bindings on a property will always execute after the view opens, potentially overriding the persistent value. When persistence is turned off on a property, a Persistent
icon is displayed in the Property Editor.
The value of this property will not be saved with the view
