Add option to remove assignment filters

In PMPC Portal, when editing an existing deployment, I can go into the assignment tab and add filters to each assigment group if desired. I can however, not remove the filters already there without having to actually delete the entire assignment and then add it again.

Not a big issue as it is usually just a few assignment groups there, but it would be natural to be able to deselect the already chosen filters if desired. I can only choose to set a filter in include or exclude mode. I cannot deselect it entirely.
Having to delete the assignment and then recreate it manually just to do this simple task feels quite unnatural in an environment that otherwise feels very streamlined.