I do not know if this is the right place to report this but...
I have found that the history of an asset is not updated it it is loaded by copy/paste or drag&drop into the asset's tree.
In example, if you copy a form from the file system and paste it in the "forms" folder of an application, the workspace asks for check out the resource, but the history will not be updated with the change. It will remain the same that before that.
The same occurs if the file is "loaded" via drag & drop