Fix Scoped Boards bug filtering by No Milestone
What does this MR do?
don't encode the
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
Does this MR meet the acceptance criteria?
Changelog entry added, if necessary
Tests added for this feature/bug
- Has been reviewed by Frontend
- Has been reviewed by Backend
Conform by the merge request performance guides
Conform by the style guides
End-to-end tests pass (
package-qamanual pipeline job)