Derived & Default field mismatch with URM xLifeCycleID

Setting the default value of field xLifeCycleID works; however, setting the derived value of the field xLifeCycleID does not appear to work?

This is the code I am currently using which is generated by the java app config manager-

Default Value
<$if #active.dDocAuthor like "sysadmin"$>
    <$dprDefaultValue="10_Years_From_Leave_Date"$>
<$endif$>

Derived Value
<$if #active.dDocAuthor like "sysadmin"$>
    <$dprDerivedValue="10_Years_From_Leave_Date"$>
<$endif$>

Steps
1. Login to the Content Server and open the Configuration Manager.
2. Navigate to the Rules tab and Click Add at the bottom of the page to create a
new rule.
3. Supply a Name and Description for the rule.