Guest users can change the confidentiality attribute on those issues that have been assigned to them

A user with no association to a project nor group can use a mutation GraphQL query to change the confidentiality on those issues where they have been previously assigned. This functionality is restricted to those users which have been granted access to a project and hold at least the `Reporter` …

mutation {
  issueSetConfidential(input:{projectPath:"groupID/projectID", iid:"5", confidential:true}){
    errors
  }
}