### Godot version

4.2.beta.custom_build [51f81e1c8]

### System information

macOS 11.0+

### Issue description

I could sense a recent merging of a few pull requests on here:

<img width="865" alt="image" src="https://github.com/godotengine/godot/assets/1129695/1cf7d144-a4d2-4514-abca-1405222e702a">

This bug has the following related merges as the most recent ones:

https://github.com/godotengine/godot/pull/80813
https://github.com/godotengine/godot/pull/80939

The pull requests are for reviving onion-skinning capabilities, but this causes a minor unexpected result (see Steps to reproduce)



### Steps to reproduce

## A. Use 4.2.beta.custom_build [51f81e1c8]

1. Obtain the attached minimal reproduction project
2. Select the AnimationPlayer node
<img width="1468" alt="image" src="https://github.com/godotengine/godot/assets/1129695/ca16d7a6-7690-45b4-b8f9-b12fded64ca4">
3. In the Animation panel, click "Edit" to find your shortcuts for "Go to Next Step" and "Go to Previous Step"
<img width="410" alt="image" src="https://github.com/godotengine/godot/assets/1129695/a708e196-2eb9-42ea-bf0e-fd0aa88a9e60">
4. Use the shortcuts to spam go back and forth the animation

Expected result: animation goes smoothly

https://github.com/godotengine/godot/assets/1129695/c24c498c-7f77-4cc9-a1c9-a1627d89c58b



Actual result: animation jumps crazily


https://github.com/godotengine/godot/assets/1129695/947bf5b4-a0ab-42d4-bb5b-201800b4bdc6


https://github.com/godotengine/godot/assets/1129695/65303cd0-8c2d-4a35-9d16-c94752ac2e3a




## B. My successful yet unverified fix attempt on 4.2.beta.custom_build [51f81e1c8]

Either by:

<img width="831" alt="image" src="https://github.com/godotengine/godot/assets/1129695/80d167ae-27e7-4ec4-a4c9-ffc7adc0353f">


Or by:

<img width="806" alt="image" src="https://github.com/godotengine/godot/assets/1129695/2bae8697-8ef3-48dc-9f0a-2b5fe568ed43">


I don't see any negative impact on Onion Skinning or other functions by the above fix attempt, but I am not sure, I need someone to help me verify this.



### Minimal reproduction project

[gd_anim_unittest_1.zip](https://github.com/godotengine/godot/files/12909805/gd_anim_unittest_1.zip)






play_bw_from->set_icon(get_editor_theme_icon(SNAME("PlayBackwards")));
			autoplay_icon = get_editor_theme_icon(SNAME("AutoPlay"));
			reset_icon = get_editor_theme_icon(SNAME("Reload"));
			{
				Ref<Image> autoplay_img = autoplay_icon->get_image();
				Ref<Image> reset_img = reset_icon->get_image();
				Size2 icon_size = autoplay_img->get_size();
				Ref<Image> autoplay_reset_img = Image::create_empty(icon_size.x * 2, icon_size.y, false, autoplay_img->get_format());
				autoplay_reset_img->blit_rect(autoplay_img, Rect2i(Point2i(), icon_size), Point2i());
				autoplay_reset_img->blit_rect(reset_img, Rect2i(Point2i(), icon_size), Point2i(icon_size.x, 0));
				autoplay_reset_icon = ImageTexture::create_from_image(autoplay_reset_img);
			}
			onion_toggle->set_icon(get_editor_theme_icon(SNAME("Onion")));
			onion_skinning->set_icon(get_editor_theme_icon(SNAME("GuiTabMenuHl")));
			pin->set_icon(get_editor_theme_icon(SNAME("Pin")));
			tool_anim->add_theme_style_override("normal", get_theme_stylebox(SNAME("normal"), SNAME("Button")));
			track_editor->get_edit_menu()->add_theme_style_override("normal", get_theme_stylebox(SNAME("normal"), SNAME("Button")));
#define ITEM_ICON(m_item, m_icon) tool_anim->get_popup()->set_item_icon(tool_anim->get_popup()->get_item_index(m_item), get_editor_theme_icon(SNAME(m_icon)))
			ITEM_ICON(TOOL_NEW_ANIM, "New");
			ITEM_ICON(TOOL_ANIM_LIBRARY, "AnimationLibrary");
			ITEM_ICON(TOOL_DUPLICATE_ANIM, "Duplicate");
			ITEM_ICON(TOOL_RENAME_ANIM, "Rename");
			ITEM_ICON(TOOL_EDIT_TRANSITIONS, "Blend");
			ITEM_ICON(TOOL_EDIT_RESOURCE, "Edit");
			ITEM_ICON(TOOL_REMOVE_ANIM, "Remove");
			_update_animation_list_icons();
		} break;
		case NOTIFICATION_VISIBILITY_CHANGED: {
			_ensure_dummy_player();
		} break;