Opened as a PR by breakfastattiffs
Currently, on the edit hosts page, under the parameters tab, if a parameter was overridden in the host's hostgroup (or that hostgroup's hostgroup), the additional information popup for that parameter says "Matcher: hostgroup."
This is not very useful because the parameter's value could be coming from the hostgroup or a grandparent hostgroup. It would be more useful to display the actual hostgroup's name so that we know precisely from which parent the parameter's overridden value is coming from.