View state still restored when two editors for the same file are opened in two editor groups

[mjbvz]

Testing #24394

1. With "workbench.editor.restoreViewState": false
2. Create two editor groups.
3. Open a copy of a long file readme.md in both editor groups.
4. Scroll part of the way down each copy of readme.md
5. Now close the copy of readme.md in the second editor group and then re-open the file in the same group

Bug
In some cases, the scroll position will be restored. This should not happen since "workbench.editor.restoreViewState": false is set.

(My repo steps are not 100% reliable. If you can't get this working, try closing and reopening readme.md in either group a few times)