respect overridoing shared functions for aggregators

lib/aggregator/index.js

@@ -178,7 +178,11 @@ queryMethods.mixin(Aggregator.prototype, function (method, methodName) {
 	// As always, we clone to maintain immutability
 	return function () {
 		const aggregator = this.clone();
-		aggregator.queries = aggregator.queries.map(q => q[methodName].apply(q, [].slice.call(arguments)))
+		aggregator.sharedFunctions.push({
+			func: methodName,
+			params: [].slice.call(arguments)
+		})
+
 		return aggregator;
 	}
 });

test/regression.test.js

@@ -91,4 +91,15 @@ describe('regression tests', () => {
 			.then(fetchMock.restore);
 	});
 
+	it('Can override previously called shared method for aggregators', () => {
+		const kq = KeenQuery.build('@ratio(potato->count(),potato->count())->interval(d)');
+		const kq2 = kq.interval('h');
+		return kq2.print('url').then(urls => {
+			expect(urls[0]).to.contain('hourly')
+			expect(urls[1]).to.contain('hourly')
+		})
+
+
+	})
+
 });