Alright, so in this case, the bug was produced by querying open tabs for a tab with the property `active: true` (not our API). Apparently, that produces not onl

Alright, so in this case, the bug was produced by querying open tabs for a tab with the property `active: true` (not our API). Apparently, that produces not only the currently focused tab, but the tab that's in focus in every open window - another search param was required to narrow it down to the focused window as well. What lessons about our architecture could we draw from this? What kind of test suite should we write?