🐛 [#4012] Fix content component link popup in form builder

because the WebformBuilder root was not unmounted after closing the modal, this did not work previously

src/openforms/js/components/formio_builder/WebformBuilder.js

@@ -105,6 +105,7 @@ class WebformBuilder extends WebformBuilderFormio {
     const root = createRoot(this.componentEdit);
 
     const onCancel = event => {
+      console.log('CANCELLING');
       event.preventDefault();
       root.unmount();
       this.emit('cancelComponent', component);
@@ -113,6 +114,7 @@ class WebformBuilder extends WebformBuilderFormio {
     };
 
     const onRemove = event => {
+      console.log('CLOSING');
       event.preventDefault();
       // Since we are already removing the component, don't trigger another remove.
       saved = true;
@@ -184,6 +186,7 @@ class WebformBuilder extends WebformBuilderFormio {
         // Clean up.
         this.removeEventListener(this.dialog, 'close', dialogClose);
         this.dialog = null;
+        root.unmount();
       };
       this.addEventListener(this.dialog, 'close', dialogClose);