The "add filter" should be smarter when adding a key that already exists

[morucci]

For instance adding multiple time "state" will append the state: to the query with an implicit AND that will not make sense.

Instead the behavior should be to modify the query this way:

• state:open and author:"John Doe" -> (state:open or state:merged) and author:"John Doe"

[TristanCacqueray]

This is not so simple to do, in the linked PR it can do: state:open and author:"John Doe" -> state:merged and author:"John Doe"

[TristanCacqueray]

Ok, turns out adding a filter as you proposed is actually simpler :-)