properties visibility for single component from inheritBaseProps don'…

src/jsonobject.ts

@@ -448,7 +448,12 @@ export class JsonObjectProperty implements IObject {
   public isVisible(layout: string, obj: any = null): boolean {
     let isLayout = !this.layout || this.layout == layout;
     if (!this.visible || !isLayout) return false;
-    if (!!this.visibleIf && !!obj) return this.visibleIf(obj);
+    if (!!this.visibleIf && !!obj) {
+      if (obj.getOriginalObj) {
+        obj = obj.getOriginalObj() || obj;
+      }
+      return this.visibleIf(obj);
+    }
     return true;
   }
   public get visible(): boolean {

src/question_custom.ts

@@ -1,5 +1,6 @@
 import { Question, IConditionObject } from "./question";
 import { Serializer, CustomPropertiesCollection, JsonObjectProperty } from "./jsonobject";
+import { Base } from "./base";
 import {
   ISurveyImpl,
   ISurveyData,
@@ -717,6 +718,9 @@ export class QuestionCustomModel extends QuestionCustomModelBase {
   public getDynamicType(): string {
     return this.questionWrapper ? this.questionWrapper.getType() : "question";
   }
+  public getOriginalObj(): Base {
+    return this.questionWrapper;
+  }
   protected createWrapper(): void {
     this.questionWrapper = this.createQuestion();
     this.createDynamicProperties(this.questionWrapper);

tests/question_customtests.ts

@@ -2796,6 +2796,9 @@ QUnit.test("single component: inheritBaseProps: array<string> #2", function (ass
   assert.equal(q1.placeholder, "cde", "q1.placeholder #3");
   assert.equal(content.placeholder, "cde", "content.placeholder #3");
 
+  const prop = Serializer.getOriginalProperty(q1, "placeholder");
+  assert.equal(prop.name, "placeholder", "prop.className is correct");
+  assert.equal(prop.isVisible("form", q1), true, "it is visible");
   ComponentCollection.Instance.clear();
 });
 QUnit.test("single component: inheritBaseProps: true", function (assert) {