draw.io diagram has no page history to restore

[Bill Wang]

Copy a page with several diagrams using Diagramly(draw.io) plugin in Confluence, and edit the diagram for many times. Then I realise the edit are updated on both source and destination pages. There are some discussions about this issue (https://drawio.atlassian.net/browse/DFC-6 , DFC-1, DFC-12), but my problem is:

I need restore the diagram to old version, is it possible? I can restore the page, but there is no option to restore the old diagram. 

Regards,

Bill

[David Benson _draw_io_]

You need to have the latest version of the plugin installed, then you'll have access to the revision history of the diagram. The cloning issue is quite an old bug, it's worth keeping the plugin reasonably up to date to avoid any issues.