Animated GIFs not fully deleted

Describe the bug
If you import an animated GIF and you delete it, the contents of the GIF are kept in de wick-file. The Asset is no longer visible in the Library, but the individual GIFs are kept.

To Reproduce
Steps to reproduce the bug, if you have them:

  1. Import an animated GIF
  2. Save wick file, and observe the size
  3. Delete the GIF in the Asset Library
  4. Save the wick-file
  5. Observe that the size has not shrunk.

Expected behavior
The individual GIF should also be remove from the assets

Additional context Optional*
thanks to the open format of the wick-file I was able to remove the GIFs by hand, but that is of course not desirable :slight_smile: