If you decide to add a new property, ensure that you do not use a property name that starts with a hash '#' character.
The above format, indicates that the property has been commented / deleted.
NOTE: If the user tries to do such a operation, then the Modified properties tab will show inconsistent values or no values.
Shown below is the inconsistent tab:
If a user has added a new property, then the right way to remove it from the property file is to use the "Delete" button on the modified properties tab as shown below: