Observe background image error upon navigating back to product list in collapsed mode

Author: itsmeichigo

WooCommerce/Classes/ViewRelated/Products/ProductsSplitViewCoordinator.swift

@@ -230,6 +230,12 @@ private extension ProductsSplitViewCoordinator {
 extension ProductsSplitViewCoordinator: UINavigationControllerDelegate {
     func navigationController(_ navigationController: UINavigationController, didShow viewController: UIViewController, animated: Bool) {
         if didNavigateFromTheLastSecondaryViewControllerToProductListInCollapsedMode(navigationController, didShow: viewController) {
+            if let contentType = contentTypes.last, case let .productForm(product) = contentType, let product {
+                ServiceLocator.productImageUploader.startEmittingErrors(
+                    key: .init(siteID: product.siteID,
+                               productOrVariationID: .product(id: product.productID),
+                               isLocalID: false))
+            }
             contentTypes = []
             secondaryNavigationController.viewControllers = []
             return