Add temporary i18n-js workaround for Spree translations until upgrade

config/initializers/i18n-js.rb

@@ -0,0 +1,30 @@
+# This is coppied from https://github.com/fnando/i18n-js/blob/master/lib/i18n/js.rb
+# As in spree core en.yml there are translations -
+# en:
+#   no: "No"
+#   yes: "Yes"
+# Which become to true and false and those have no #to_sym method
+# TODO - remove this after spree core locales are fixed
+
+module I18n
+  module JS
+    # Filter translations according to the specified scope.
+    def self.filter(translations, scopes)
+      scopes = scopes.split(".") if scopes.is_a?(String)
+      scopes = scopes.clone
+      scope = scopes.shift
+      if scope == "*"
+        results = {}
+        translations.each do |scope, translations|
+          tmp = scopes.empty? ? translations : filter(translations, scopes)
+          scope_symbol = scope.respond_to?(:to_sym) ? scope.to_sym : scope.to_s.to_sym
+          results[scope_symbol] = tmp unless tmp.nil?
+        end
+        return results
+      elsif translations.respond_to?(:key?) && translations.key?(scope.to_sym)
+        return {scope.to_sym => scopes.empty? ? translations[scope.to_sym] : filter(translations[scope.to_sym], scopes)}
+      end
+      nil
+    end
+  end
+end