Issue #3405352 by DieterHolvoet, kasperg: Enum properties do not reflect value change

src/ComputedEnum.php

@@ -38,4 +38,12 @@ class ComputedEnum extends TypedData {
     return NULL;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function setValue($value, $notify = TRUE) {
+    $this->enum = NULL;
+    parent::setValue($value, $notify);
+  }
+
 }