Duplicate issue on configurable issue board when upcoming or started milestone selected
Summary
My goal was/is to create a board per developer with all ongoing and upcoming issues and thus milestones.
When I configure a board this way it works as intended (Milestone: Upcoming, Assignee: Developer-X) except for the way issues that have a list label are shown. I see them both in the backlog list and in the label list (e.g. Todo).
When selecting Milstone: v1.0.0 (so a specific milestone) it works as I would expect (and it always has worked).
Steps to reproduce
Create a configurable issue board and select Milestone: Upcoming or Started.
Example Project
https://gitlab.com/giix/example-project/
Bug behavior:
Correct behavior:
What is the current bug behavior?
Issues are displayed twice when selecting upcoming or started milestones and issues have a list label.
What is the expected correct behavior?
Issues should be shown only once. As when selecting a specific, No or All milestones.
Relevant logs and/or screenshots
Bug behaviour
Correct behaviour
Possible fixes
Consistent behavior