Download cannot be removed for pinned items

[i2h3]

This was split off #9010 to divide individual topics brought up there.

Steps to reproduce

1. Have an account setup with file provider enabled
2. Go to file provider domain and mark an item with "Always keep downloaded" custom action in context menu
3. Then open the context menu to select the "Remove download" which is a first party action offered by Finder itself

Expectation

• Item content is evicted and and item becomes dataless
• The content policy of the item is changed back to the default

Reality

• Finder presents an error alert telling "The file Example.jpg cannot be ejected"
• Item remains materialized
• Item retains its content policy
• Apparently nothing changed

Notes

• Google Drive has the same issue.
• OneDrive somehow managed to suppress the "Remove download" action offered by Finder. 🤷🏼‍♀️

[ismasans]

I’m having similar issues with Dropbox (they use their own menus) and was starting to think that my File Provider system was broken because the same thing was happening with Nextcloud.

I’m following this thread to stay up to date.

[ismasans]

Oops...!
I've just realised something... If the file is selected, you can't evict it, buuuuut... If you don't select it (or keep another file selected) and right-click on the file you want to evict (without selecting it), it does let you.

In other words:
File selected -> Cannot evict the download
Without selecting the file (using only the right-click) -> It does allow it.

Tested with Nextcloud and Dropbox.

[i2h3]

This still requires further investigation and appears to be a Finder or file provider framework issue. This error appears before it even hits our extension code. I still have an idea, though, how this possibly could be influenced positively.