We are running parallel sprints on diffrent boards on the same project. To mange issues and sprint I use different filters which select the issues to the sprints (e.g.: project = P and sprint in (xy)).
With the new GH version, filtering would be possible like: "project = P and Sprint is EMPTY and status = Open or status = Reopened" but with this filter it is not possible to exlude the issue wich are planned in upcoming sprints.
Therfore i need a query (filter) which will extract all plannable Issues from the project backlog on the different boards.
