GORM to support dynamic-update="true"

It would be nice if GORM supported Hibernate's dynamic-update="true", here is an exmple hibernate mapping

<class name="CommonProfile" table="common_profile" dynamic-update="true">

dynamic-update="true" makes update queries only update fields that have been changed on domain objects. An example of why this would be nice is that I'm using a custom UserType to hash my passwords, but every time I update my user objects, the password gets re-hashed, so it is ever changing. Dynamic-update would solve that, because I wouldn't be altering the password field unless I wanted it changed.