Project Properties build/Run Context Path is an editable field but is not updated when clicking OK.

Problem

Using Apache Netbeans 12.0 beta 3, Project Properties build/Run Context Path is an editable field but is  not updated when clicking OK.

This is also an issue in 11.3

Steps to reproduce:

1. Install Apache NetBeans 12.0 beta 3

 2. Create a new project Java with Maven/Web Application.  Go to Project Properties build/Run Context Path and change it.  Click OK.  Go back to Project Properties build/Run Context Path and note that it has not changed.

Importance

This is an important bug because the Context Path is passed to the server, e.g. Payara resulting in a 404 when the servlet is invoked.