When you change the object type, the old object type is displayed in the History tab of the object's attribute form. This applies to objects that had one of the following states at the time of the change:

•In use

•In use, planned for reconstruction

•In use, planned for destruction

•In use, not exported

•In use, graphics generated

•Destroyed

•Discarded

•Out of operation

For other states, the system considers the new object type as a completely new object without history.