can't add keyword scope under multiple keywords

release 1.5.14

If you add multiple keywords to a child scope, it only appears in the aggregator under one keyword.

Note: This was by intention in order to prevent child scopes from just adding all keywords to make their scope appear everywhere. However, IF they check which keyword they are aggregated by and return ONLY appropriate results, then it is valid to declare multiple keywords, and it should show up multiple times in the agg scope. And if they do not, the user can always disable the scope in agg scope settings.