ENGCOM-3161: [Forwardport] #4942 and bundle checkbox bug #18520. Fix functional tests.

Author: nmalevanec

app/code/Magento/Bundle/Test/Mftf/Test/StorefrontEditBundleProductTest.xml

@@ -95,7 +95,7 @@
         <waitForPageLoad stepKey="waitForStorefront2"/>
 
         <!-- Check second one option to choose both of the options on the storefront -->
-        <click selector="{{StorefrontBundledSection.bundleOption('1','2')}}" stepKey="selectSecondBundleOption2"/>
+        <click selector="{{StorefrontBundledSection.nthBundledOption('1','2')}}" stepKey="selectSecondBundleOption2"/>
 
         <waitForPageLoad stepKey="waitForPriceUpdate3"/>
         <see stepKey="seeDoublePrice" selector="{{StorefrontBundledSection.configuredPrice}}" userInput="2,460.00"/>