[Ebay] The initial product and price is wrongly added even if the model of the product was changed

[Softvision-RemusDranca]

[Affected versions]:

• Firefox Release 64.0 and above

[Affected Platforms]:

• All Windows
• All Mac
• All Linux

[Prerequisites]:

• Have a new Firefox profile with the latest version of "Price Wise" (18.0.0, date: 01.09.2019) installed.

[Steps to reproduce]:

1. Open the browser with the profile from prerequisites and navigate to "https://www.ebay.com/".
2. Open a product page with different models (ex: product).
3. Change the product's "Model".
4. Click the "Price Wise" toolbar button.
5. Click the "Add This Product" button and observe the added product from the "Products" list.

[Expected result]:

• The selected product model and price is correctly added.

[Actual result]:

• The initial product and price is added instead of the newly selected product model.

[Notes]:

• This issue is also reproducible if the size, color and package variation of a product is changed.
• This issue is reproducible with the TP version of "Price Wise" experiment.
• This issue is not reproducible on the other websites supported by "Price Wice".
• Attached is a screen recording of the issue: