fix: Fix tagline not showing without description defined

Author: DGCK81LNN

lib/jekyll-seo-tag/drop.rb

@@ -75,7 +75,7 @@ def title
         @title ||= begin
           if site_title && page_title != site_title
             page_title + TITLE_SEPARATOR + site_title
-          elsif site_description && site_title
+          elsif site_tagline_or_description && site_title
             site_title + TITLE_SEPARATOR + site_tagline_or_description
           else
             page_title || site_title

spec/jekyll_seo_tag/drop_spec.rb

@@ -109,6 +109,17 @@
       end
 
       context "with a site tagline but no page title" do
+        let(:page)  { make_page }
+        let(:config) do
+          { "title" => "site title", "tagline" => "site tagline" }
+        end
+
+        it "builds the title" do
+          expect(subject.title).to eql("site title | site tagline")
+        end
+      end
+
+      context "with a site tagline ans description but no page title" do
         let(:page)  { make_page }
         let(:config) do
           { "title" => "site title", "description" => "site description", "tagline" => "site tagline" }