If selected-route is set, selecting a parent after selecting another child causes an error.

[ppeyro]

Expected behavior and actual behavior:

When a selected-route is defined, if you select a parent above it, then try to select another parent after that, you'll hit an error "item not found in graph".

Steps to reproduce the problem:

Environment:

Breadcrumbs: Redesign branch browser: Chrome, FF

Screenshots:

On load with preselected route:

Selected one level up:

Tried to select one more level up:

Code example:

      <div>
        <px-breadcrumbs
          items="{{items}}"

          selected-route='["id1","id2","id3","id4","id5","id6","id7"]'
          filter-mode="true"
          enable-warnings="true"

        >
      </px-breadcrumbs>
    </div>