In the latest version of Antdepo, the get-opts task has been enhanced to support an explicit "defaultproperty" attribute described in this posting http://groups.google.com/group/controltier/msg/93081d2eed73c679?hl=en.
Before this enhancement the convention was to assign entity attribute properties to option properties in the -pre-execute section of a module's target life-cycle - usually in command.xml.
All modules in ModuleForge should be upgraded to comply with this new convention replacing these assignments with the the use of default properties wherever possible.