HDRenderPipeline: Update dirty flags for GI on lightEditor

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/Lighting/HDLightEditor.cs

             if (m_LightShape != LightShape.Directional)
                 settings.DrawRange(false);
 
+            EditorGUI.BeginChangeCheck(); // For GI we need to detect any change on additional data and call SetLightDirty
+
             // LightShape is HD specific, it need to drive LightType from the original LightType
             // when it make sense, so the GI is still in sync with the light shape
             switch (m_LightShape)
                     Debug.Assert(false, "Not implemented light type");
                     break;
             }
+
+            if (EditorGUI.EndChangeCheck())
+            {
+                ((Light)target).SetLightDirty(); // Should be apply only to parameter that's affect GI, but make the code cleaner
+            }
         }
 
         void DrawLightSettings()
             settings.DrawBounceIntensity();
             settings.DrawLightmapping();
+
+            EditorGUI.BeginChangeCheck(); // For GI we need to detect any change on additional data and call SetLightDirty
 
             // No cookie with area light (maybe in future textured area light ?)
             if (m_LightShape != LightShape.Rectangle && m_LightShape != LightShape.Line)
                 EditorGUILayout.PropertyField(m_AdditionalLightData.lightDimmer, s_Styles.lightDimmer);
                 EditorGUILayout.PropertyField(m_AdditionalLightData.applyRangeAttenuation, s_Styles.applyRangeAttenuation);
                 EditorGUI.indentLevel--;
+            }
+
+            if (EditorGUI.EndChangeCheck())
+            {
+                ((Light)target).SetLightDirty(); // Should be apply only to parameter that's affect GI, but make the code cleaner
             }
         }