nullref error fix when no active scene was found

Author: nikodemgrz

Assets/NikosAssets/U3DHelperTools/Samples/Scripts/ScriptableObjectSample.cs

@@ -13,7 +13,8 @@ public class ScriptableObjectSample : BaseNotesSO
 #if UNITY_EDITOR
         private void OnDisable()
         {
-            if (SceneManager.GetActiveScene().name.Equals(sceneToCheck))
+            Scene activeScene = SceneManager.GetActiveScene();
+            if (activeScene.name != null && activeScene.name.Equals(sceneToCheck))
             {
                 Debug.Log(this.name + " SO Disable: ");
                 Debug.Log("Application.isPlaying: " + Application.isPlaying);

ProjectSettings/EditorBuildSettings.asset

@@ -8,9 +8,6 @@ EditorBuildSettings:
   - enabled: 1
     path: Assets/NikosAssets/U3DHelperTools/Samples/Scenes/Demo_MonoBehaviours.unity
     guid: a75c3581abf5cbc44add8926db9e3c20
-  - enabled: 1
-    path: Assets/NikosAssets/U3DHelperTools/Samples/Scenes/Demo_MiscUtilities.unity
-    guid: cecf730639886b946bc2db8fc362c36f
   - enabled: 1
     path: Assets/NikosAssets/U3DHelperTools/Samples/Scenes/Demo_EditorAndGUI.unity
     guid: 0facf87a59fef2447857bbc8689b5011
@@ -20,4 +17,7 @@ EditorBuildSettings:
   - enabled: 1
     path: Assets/NikosAssets/U3DHelperTools/Samples/Scenes/Demo_MathOperations.unity
     guid: 64d76718ddeebe4459533092cc418c64
+  - enabled: 1
+    path: Assets/NikosAssets/U3DHelperTools/Samples/Scenes/Demo_MiscUtilities.unity
+    guid: cecf730639886b946bc2db8fc362c36f
   m_configObjects: {}