Fixes if case to render author info in releases

app/assets/javascripts/releases/components/release_block.vue

@@ -45,7 +45,7 @@ export default {
       return this.release.author || {};
     },
     hasAuthor() {
-      return _.isEmpty(this.author);
+      return !_.isEmpty(this.author);
     },
   },
 };

spec/javascripts/releases/components/release_block_spec.js

@@ -133,4 +133,8 @@ describe('Release block', () => {
       release.assets.links[0].name,
     );
   });
+
+  it('renders author avatar', () => {
+    expect(vm.$el.querySelector('.user-avatar-link')).not.toBeNull();
+  });
 });