"Show n results" loses the scope search filter

[JammingBen]

Describe the bug

Clicking on "Show n results" from the search preview loses the scope filter.

Steps to reproduce

1. Create "file.txt" in your personal space
2. Set the search scope from "All files" to "Current folder"
3. Enter "file" in the search bar and wait for the preview to show up
4. Click on "Show 1 result"

Expected behavior

The "Current folder" scope stays active on the search result page.

Actual behavior

The scope switches back to "All files" on the search result page.

[JammingBen]

Fixed via #10653.