Affects Version/s: 7.0.X, 7.1.X, Master
1. Start the server.
2. Go to Content --> Wiki and add a Wiki.
3. Click on the created Wiki and add a page with a Title and Content then publish.
4. Edit the Wiki page and change the content and add an attachment (Do not publish).
5. Delete attachment.
Actual Result: The edited content of the Wiki is reversed back to the original published content.
Expected Result: Only the attachment should be deleted without altering the edited content.