Warning: Property for move not found

Unexpected message in the History when moving elements within Assets

Steps:

• as admin click 'To the documents' from the main panel, then click 'Assets' under 'Documents'
• add a root folder 'test' next to 'hippos' under Assets
• add any document to this folder 'test'
• click on the document to display its properties
• select Document Action -> Move to other folder
• select the 'hippos' folder as the destination: on the Move to other folder dialog, click first on Assets to expand the group and then on the folder named 'hippos', then OK to validate the operation
• verify that the operation is effective by checking the presence of the file under 'hippos' and its disappearance from 'test', as expected

Results:

• exp: the operation is effective
• act: the operation is effective BUT the message in the Summary field above is listed on the History view (see also screenshot).

Note: this seems harmless.