Deleting an Effect file from the assets view has no effect on the project

How to reproduce:

1. Create a New Effect file called MyEffect
2. Add a noise node to MyEffect
3. Save the MyEffect
   1. The directory and files are created under asset_imports/Effects/MyEffect
4. Apply MyEffect to an Image QML component in Screen01.ui.qml
   1. QML code is automatically updated with the MyEffect applied to the image.
5. Right click on the Effect file in the assets view
6. Delete the file

Description

The effect file disappears from the effects list in the assets view, but the files from asset_imports/Effects/MyEffect are still there and the code still refers to the MyEffect component.

Expected behavior

Deleting the file should have some effects.

If the asset comes from the outside, the effect file should not be removed, but at least a user should be notified that the effect is still referred in the QML.
Preferably, the QML code should be automatically updated, so the designers, who don't have much expertise in writing the code, are able to proceed with their project.