8BF & Undo (Déjà vu)

[XnTriq]

1. Open an image.
2. Go to Filter » Adobe Photoshop Plug-In....
3. In the Plugins manager, choose The Plugin Site » Harry's Filters 3.01... (or any other available plug-in) and click on Start....
4. Apply the filter with some random settings.
   » The image is changed and the unsaved indicator (asterisk) shows up.
5. Back in the Plugins manager, click on the Undo button.
   » The changes are reverted and the indicator disappears.
6. Leave the Plugins manager by clicking on Cancel.
   » The filter is applied again and the asterisk is back.

Related: Global “Undo” vs. Plugins manager “Undo”