### Godot version

3.5.1mono

### System information

windows10

### Issue description

Error message
 scene/main/node.cpp:1362 - Index p_index = 0 is out of bounds (data.children.size() = 0).
 scene/main/node.cpp:397 - Parameter "p_child" is null.
 scene/gui/tab_container.cpp:593 - Index p_current = 0 is out of bounds (get_tab_count() = 0).
See "Steps to reproduce for details"

### Steps to reproduce

Set an external text editor
Create a script
Drop the script to the built-in text editor like this image:
![image](https://user-images.githubusercontent.com/119792950/209504041-039f2620-5e42-4c0f-8c41-cd24486fb3d2.png)
And got error message:
 scene/main/node.cpp:1362 - Index p_index = 0 is out of bounds (data.children.size() = 0).
 scene/main/node.cpp:397 - Parameter "p_child" is null.
 scene/gui/tab_container.cpp:593 - Index p_current = 0 is out of bounds (get_tab_count() = 0).

### Minimal reproduction project

An empty project
}
				find_in_files_button->hide();
			}
		} break;
	}
}
bool ScriptEditor::can_take_away_focus() const {
	ScriptEditorBase *current = _get_current_editor();
	if (current) {
		return current->can_lose_focus_on_node_selection();
	} else {
		return true;
	}
}
void ScriptEditor::close_builtin_scripts_from_scene(const String &p_scene) {
	for (int i = 0; i < tab_container->get_tab_count(); i++) {
		ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(tab_container->get_tab_control(i));
		if (se) {
			Ref<Script> scr = se->get_edited_resource();
			if (scr == nullptr || !scr.is_valid()) {
				continue;
			}
			if (scr->is_built_in() && scr->get_path().begins_with(p_scene)) { 
				_close_tab(i, false);
				i--;
			}
		}
	}
}
void ScriptEditor::edited_scene_changed() {