### 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
#endif
	settings_menu->add_item(TTR("Manage Editor Features..."), SETTINGS_MANAGE_FEATURE_PROFILES);
#ifndef ANDROID_ENABLED
	settings_menu->add_item(TTR("Manage Export Templates..."), SETTINGS_MANAGE_EXPORT_TEMPLATES);
#endif
#if !defined(ANDROID_ENABLED) && !defined(WEB_ENABLED)
	settings_menu->add_item(TTR("Configure FBX Importer..."), SETTINGS_MANAGE_FBX_IMPORTER);
#endif
	help_menu = memnew(PopupMenu);
	help_menu->set_name(TTR("Help"));
	main_menu->add_child(help_menu);
	help_menu->connect("id_pressed", callable_mp(this, &EditorNode::_menu_option));
	ED_SHORTCUT_AND_COMMAND("editor/editor_help", TTR("Search Help"), Key::F1);
	ED_SHORTCUT_OVERRIDE("editor/editor_help", "macos", KeyModifierMask::ALT | Key::SPACE);
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("HelpSearch"), SNAME("EditorIcons")), ED_GET_SHORTCUT("editor/editor_help"), HELP_SEARCH);
	help_menu->add_separator();
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("ExternalLink"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/online_docs", TTR("Online Documentation")), HELP_DOCS);
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("ExternalLink"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/q&a", TTR("Questions & Answers")), HELP_QA);
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("ExternalLink"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/report_a_bug", TTR("Report a Bug")), HELP_REPORT_A_BUG);
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("ExternalLink"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/suggest_a_feature", TTR("Suggest a Feature")), HELP_SUGGEST_A_FEATURE);
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("ExternalLink"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/send_docs_feedback", TTR("Send Docs Feedback")), HELP_SEND_DOCS_FEEDBACK);
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("ExternalLink"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/community", TTR("Community")), HELP_COMMUNITY);
	help_menu->add_separator();
	if (!global_menu || !OS::get_singleton()->has_feature("macos")) {
		
		help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("Godot"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/about", TTR("About Godot")), HELP_ABOUT);
	}
	help_menu->add_icon_shortcut(gui_base->get_theme_icon(SNAME("Heart"), SNAME("EditorIcons")), ED_SHORTCUT_AND_COMMAND("editor/support_development", TTR("Support Godot Development")), HELP_SUPPORT_GODOT_DEVELOPMENT);
	
	Control *right_spacer = memnew(Control);