[JENKINS-18429] Correcting faulty logic in 8b4f3042.

ui-samples-plugin/src/main/java/jenkins/plugins/ui_samples/UISample.java

@@ -100,10 +100,10 @@ public abstract class UISample implements ExtensionPoint, Action, Describable<UI
         for (UISample uiSample : UISample.all()) {
             for (SourceFile src : uiSample.getSourceFiles()) {
                 if (src.name.contains("groovy")) {
-                    r.add(uiSample);
                     continue OUTER;
                 }
             }
+            r.add(uiSample);
         }
         return r;
     }