Various fixes

js/entity/GuidEntity.js

@@ -4,7 +4,7 @@ import IEntity from "./IEntity"
 export default class GuidEntity extends IEntity {
 
     static attributes = {
-        value: String
+        value: String,
     }
 
     static generateGuid(random = true) {
@@ -19,6 +19,10 @@ export default class GuidEntity extends IEntity {
         return new GuidEntity({ value: guid })
     }
 
+    valueOf() {
+        return this.value
+    }
+
     toString() {
         return this.value
     }