Hey there,
first of all i need to say that our statusses are in german, so i need to translate them for this post 
we got a status called "Offer rejected" which is created with the green categorie "completed" just like the real standard "complete" field.
Why do tasks with the status "Offer rejected" show up in the jira standard filter "open tasks" nevertheless?
I mean i can create a new filter that excludes this status but it's "harder to finde" for the users.
I've recreated the workflow in english to show it to you:
