As a developer, I want to be able to filter for reviews with missing reviewers.

In our team we normally require two reviewers per review, sometimes only one. If a developer of our team looks for a review to join, he needs to check all tooltips of the open reviews if the required number of reviewers has already joined. If one reviewer has already joined, the review is not shown in "My Reviews", so this filter does not fulfill our needs. To achieve short review cycles in the team, developers check the reviews regularly.

A possible solution would be to be able set the minimum number of reviewers for a review and have "My Reviews" also show reviews where the minimum number of reviewers have not joined. It should be possible that additional reviewers join after the minimum number of reviewers have joined.