It can and does happen.. you end up with objects that you know are in production but for whatever reason never got committed and put into a migration script. Or, you just aren't interested in ever putting a certain change live.. maybe they are dev only. Maybe they are irrelevant objects like users. Maybe a naughty dev put stuff live without going through the proper process.

In all the above cases I want to be able to remove the object from my "pending" list without reverting. I want to ignore them completely.

I am aware of the ability to filter but I find this cumbersome and unsuitable in the case where I know I will never be committing a change.