### 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)

k = k->duplicate();
		bool shift_pressed = k->is_shift_pressed();
		
		k->set_shift_pressed(false);
		if (k->is_action("ui_text_caret_word_left", true)) {
			_move_caret_left(shift_pressed, true);
			accept_event();
			return;
		}
		if (k->is_action("ui_text_caret_left", true)) {
			_move_caret_left(shift_pressed);
			accept_event();
			return;
		}
		if (k->is_action("ui_text_caret_word_right", true)) {
			_move_caret_right(shift_pressed, true);
			accept_event();
			return;
		}
		if (k->is_action("ui_text_caret_right", true)) {
			_move_caret_right(shift_pressed, false);
			accept_event();
			return;
		}
		
		if (k->is_action("ui_text_caret_up", true) || k->is_action("ui_text_caret_line_start", true) || k->is_action("ui_text_caret_page_up", true)) {
			_move_caret_start(shift_pressed);
			accept_event();
			return;
		}