Document correct settings for "Is One Of" in filter settings and HS dropbox

OK, after getting the "Add" button to appear, even in a views-fusion view, and all that working properly, I think I've discovered something that's a bit of a kick in the pants. Let's suppose you have four nodes with content_taxonomy fields for location, tied into a location taxonomy, and you're saving the entire lineage so you can display it in a lovely hierarchical text on the node itself. All that works great. Say the nodes are like this:

Node 1: Location: Canada > Ontario > Toronto
Node 2: Location: Canada > Ontario > Ottawa
Node 3: Location: Canada > Ontario > Kingston
Node 4: Location: Canada > Ontario > Toronto

Now, suppose in a view to display a quick summary of some of the items on the nodes you want to filter to get just the nodes in Toronto and Ottawa. With the filter set to "Is All Of", if I put "Canada > Ontario > Toronto" in my hierarchical-select managed exposed filter, I get my two Toronto nodes, Node 1 and Node 4. If I put "Canada > Ontario > Ottawa" in, i get Node 2. So far so good. However, if i now put both those in for my exposed filter, I get nothing. I surmise because none of the nodes satisfy the "Is All Of" criteria. That is, None of the nodes have all the terms "Canada", "Ontario", "Toronto", and "Ottawa".

OK, so now change the filter operator to "Is One Of". Now if I put "Canada > Ontario > Toronto" in my hierarchical-select managed exposed filter, I get all four nodes. I surmise that in this case, indeed every node does have "one of" "Canada", "Ontario", and "Toronto". In fact, they all have two of 'em --- "Canada" and "Ontario".

OK, so here's the question. How do I get the behaviour I want? That is, if I put the exposed filter for "Canada > Ontario > Toronto" and "Canada > Ontario > Ottawa", I get Nodes 1, 2, and 4, but not 3.

Any ideas?

shawn