### 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 (editor_plugin_screen) {
		editor_plugin_screen->make_visible(false);
	}
	editor_plugin_screen = new_editor;
	editor_plugin_screen->make_visible(true);
	editor_plugin_screen->selected_notify();
	int plugin_count = editor_data.get_editor_plugin_count();
	for (int i = 0; i < plugin_count; i++) {
		editor_data.get_editor_plugin(i)->notify_main_screen_changed(editor_plugin_screen->get_name());
	}
	if (EDITOR_GET("interface/editor/separate_distraction_mode")) {
		if (p_which == EDITOR_SCRIPT) {
			set_distraction_free_mode(script_distraction_free);
		} else {
			set_distraction_free_mode(scene_distraction_free);
		}
	}
}
void EditorNode::select_editor_by_name(const String &p_name) {
	ERR_FAIL_COND(p_name.is_empty());
	for (int i = 0; i < main_editor_buttons.size(); i++) {
		if (main_editor_buttons[i]->get_text() == p_name) {
			editor_select(i);
			return;
		}
	}
	ERR_FAIL_MSG("The editor name '" + p_name + "' was not found.");
}
void EditorNode::add_editor_plugin(EditorPlugin *p_editor, bool p_config_changed) {