Select the base product for evaluating the addon dependencies

src/include/packager/repositories_include.rb

@@ -1,5 +1,6 @@
 
 require "y2packager/product_location"
+require "y2packager/product"
 
 # encoding: utf-8
 module Yast
@@ -341,9 +342,15 @@ def autorefresh_for?(url)
     # scan the repository URL and return the available products
     # @return [Array<Y2Packager::ProductLocation>] Found products
     def scan_products(_expanded_url, original_url)
-      # TODO: use the selected base product during installation,
+      # use the selected base product during installation,
       # in installed system use the installed base product
-      base_product = "SLES" # Stage.initial ? ...
+      base_product = if Stage.initial
+        Y2Packager::Product.selected_base.name
+      else
+        Y2Packager::Product.installed_base_product.name
+      end
+
+      log.info("Using base product: #{base_product}")
       found_products = Y2Packager::ProductLocation.scan(original_url, base_product)
       log.info("Found products: #{found_products}")