Guard PropertyDrawer with EditorGUI.BeginProperty/EndProperty.

Author: jfreire-unity

Packages/com.unity.inputsystem/InputSystem/Editor/PropertyDrawers/InputActionReferencePropertyDrawer.cs

@@ -22,11 +22,14 @@ internal sealed class InputActionReferencePropertyDrawer : PropertyDrawer
 
         public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
         {
-            // Sets the property to null if the action is not found in the asset.
+            EditorGUI.BeginProperty(position, label, property);
+
             ValidatePropertyWithDanglingInputActionReferences(property);
 
             ObjectField.DoObjectField(position, property, typeof(InputActionReference), label,
                 m_Context, SearchConstants.PickerViewFlags);
+
+            EditorGUI.EndProperty();
         }
 
         static void ValidatePropertyWithDanglingInputActionReferences(SerializedProperty property)
@@ -37,7 +40,6 @@ static void ValidatePropertyWithDanglingInputActionReferences(SerializedProperty
                 if (action is null)
                 {
                     property.objectReferenceValue = null;
-                    property.serializedObject.ApplyModifiedProperties();
                 }
             }
         }