### Godot version

v4.2.dev4.official [549fcce5f]

### System information

Windows 10

### Issue description

`scene/main/node.cpp:1757 - Parameter "p_node" is null.` when attempting to type after using find function. Does not happen in 4.2dev3.

https://github.com/godotengine/godot/assets/3820082/4a2818f7-cc3b-4b46-a0b1-5bc6a85b4abc


### Steps to reproduce

1) Open any script in the script editor
2) Ctrl+F to select some text that exists in the script
3) Hit escape to re-focus the script editor without placing the caret
4) Attempt to type



### Minimal reproduction project

[find-mrp.zip](https://github.com/godotengine/godot/files/12555561/find-mrp.zip)

_toggle_draw_caret();
				}
			}
		} break;
		case NOTIFICATION_DRAW: {
			int width, height;
			bool rtl = is_layout_rtl();
			Size2 size = get_size();
			width = size.width;
			height = size.height;
			RID ci = get_canvas_item();
			Ref<StyleBox> style = theme_cache.normal;
			if (!is_editable()) {
				style = theme_cache.read_only;
			}
			Ref<Font> font = theme_cache.font;
			if (!flat) {
				style->draw(ci, Rect2(Point2(), size));
			}
			if (has_focus()) {
				theme_cache.focus->draw(ci, Rect2(Point2(), size));
			}
			int x_ofs = 0;
			bool using_placeholder = text.is_empty() && ime_text.is_empty();
			float text_width = TS->shaped_text_get_size(text_rid).x;
			float text_height = TS->shaped_text_get_size(text_rid).y;
			switch (alignment) {
				case HORIZONTAL_ALIGNMENT_FILL:
				case HORIZONTAL_ALIGNMENT_LEFT: {
					if (rtl) {