### Godot version

v4.0.beta15.official [4fa6edc88]

### System information

Windows 11

### Issue description

When drawing a polygon in the editor, several duplicate vertices are added to the polygon array for each click.  In the image below, I clicked three times to draw the triangle, but got 10 entries.  The number you get varies, though I don't know why; I've seen hundreds of points from drawing a hexagon.  I tested it with a Polygon2D, a CollisionPolygon2D, and a CollisionPolygon3D; the issues occurs with all of them.  It later occurred to me that this might happen with a Curve2D as well, and it does.

![image](https://user-images.githubusercontent.com/2808851/214926182-b8609b87-85a1-4a08-8017-be4eeec912c6.png)


### Steps to reproduce

Add a node that has a Polygon or Curve resource, such as a Polygon2D, draw some points, then check the PackedVector2Array resource.

### Minimal reproduction project

N/A
}
		if (scene->get_scene_file_path().is_empty()) {
			current_menu_option = FILE_SAVE_AND_RUN;
			_menu_option_confirm(FILE_SAVE_AS_SCENE, true);
			file->set_title(TTR("Save scene before running..."));
			return;
		}
		run_filename = scene->get_scene_file_path();
	} else if (!p_custom.is_empty()) {
		run_filename = p_custom;
	}
	if (run_filename.is_empty()) {
		
		if (!ensure_main_scene(false)) {
			return;
		}
		run_filename = GLOBAL_DEF_BASIC("application/run/main_scene", "");
	}
	if (bool(EDITOR_GET("run/auto_save/save_before_running"))) {
		if (unsaved_cache) {
			Node *scene = editor_data.get_edited_scene_root();
			if (scene && !scene->get_scene_file_path().is_empty()) { 
				_save_scene_with_preview(scene->get_scene_file_path());
			}
		}
		_menu_option(FILE_SAVE_ALL_SCENES);
		editor_data.save_editor_external_data();
	}
	if (!call_build()) {
		return;