destroy

src/Umbraco.Web.UI.Client/src/backoffice/components/entity-property/entity-property.element.ts

@@ -137,7 +137,7 @@ export class UmbEntityPropertyElement extends UmbControllerHostMixin(LitElement)
 
 	private _observePropertyEditorUI() {
 		if(this.propertyEditorUIObserver) {
-			//this.propertyEditorUIObserver.destroy();
+			this.propertyEditorUIObserver.destroy();
 		}
 		this.propertyEditorUIObserver = new UmbObserverController<ManifestTypes>(this, umbExtensionsRegistry.getByAlias(this.propertyEditorUIAlias), (manifest) => {
 			if (manifest?.type === 'propertyEditorUI') {

src/Umbraco.Web.UI.Client/src/core/observable-api/observer.ts

@@ -22,4 +22,9 @@ export class UmbObserver<Y = any> {
 	hostDisconnected() {
 		this.#subscription.unsubscribe();
 	}
+
+	destroy(): void {
+		this.#subscription.unsubscribe();
+	}
+
 };