### Godot version

4.1.dev (dc625bcbfc5b587ba8867481ee7a1f6a567c25d0)

### System information

Mageia 9, Linux

### Issue description

When importing a project in current `master`, the following error is raised for each asset that gets imported:
```
Attempting to parent and popup a dialog that already has a parent.
```

It seems to be raised once per asset, caused by the progress dialog.

CC @bruvzg

### Steps to reproduce

- Import a new project in Godot that contains importable assets, e.g. https://github.com/RPicster/godot4-demo-desert-light

### Minimal reproduction project

See above.
recent_scenes->set_name("RecentScenes");
	file_menu->add_child(recent_scenes);
	recent_scenes->connect("id_pressed", callable_mp(this, &EditorNode::_open_recent_scene));
	if (!global_menu || !OS::get_singleton()->has_feature("macos")) {
		
		file_menu->add_separator();
		file_menu->add_shortcut(ED_SHORTCUT_AND_COMMAND("editor/file_quit", TTR("Quit"), KeyModifierMask::CMD_OR_CTRL + Key::Q), FILE_QUIT, true);
	}
	project_menu = memnew(PopupMenu);
	project_menu->set_name(TTR("Project"));
	main_menu->add_child(project_menu);
	project_menu->add_shortcut(ED_SHORTCUT_AND_COMMAND("editor/project_settings", TTR("Project Settings..."), Key::NONE, TTR("Project Settings")), RUN_SETTINGS);
	project_menu->connect("id_pressed", callable_mp(this, &EditorNode::_menu_option));
	vcs_actions_menu = VersionControlEditorPlugin::get_singleton()->get_version_control_actions_panel();
	vcs_actions_menu->set_name("Version Control");
	vcs_actions_menu->connect("index_pressed", callable_mp(this, &EditorNode::_version_control_menu_option));
	project_menu->add_separator();
	project_menu->add_child(vcs_actions_menu);
	project_menu->add_submenu_item(TTR("Version Control"), "Version Control");
	vcs_actions_menu->add_item(TTR("Create Version Control Metadata"), RUN_VCS_METADATA);
	vcs_actions_menu->add_item(TTR("Version Control Settings"), RUN_VCS_SETTINGS);
	project_menu->add_separator();
	project_menu->add_shortcut(ED_SHORTCUT_AND_COMMAND("editor/export", TTR("Export..."), Key::NONE, TTR("Export")), FILE_EXPORT_PROJECT);
#ifndef ANDROID_ENABLED
	project_menu->add_item(TTR("Install Android Build Template..."), FILE_INSTALL_ANDROID_SOURCE);
	project_menu->add_item(TTR("Open User Data Folder"), RUN_USER_DATA_FOLDER);
#endif
	project_menu->add_separator();
	project_menu->add_item(TTR("Customize Engine Build Configuration..."), TOOLS_BUILD_PROFILE_MANAGER);
	project_menu->add_separator();