Removes custom properties from the user client.
{% unset_client [property1] [property2] [etc...] %}
You may also include reference variables as properties, which will be dereferenced to their property names before unsetting the client properties.
If no properties are specified, then ALL custom properties will be unset from the client
Unset client if do not track is present
CopyUnset specific client properties
CopyUnset client properties dynamically with reference variable
Copy