### 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)

clear_internal();
	insert_text_at_caret(p_text);
	_create_undo_state();
	queue_redraw();
	caret_column = 0;
	scroll_offset = 0.0;
}
void LineEdit::set_text_with_selection(const String &p_text) {
	Selection selection_copy = selection;
	clear_internal();
	insert_text_at_caret(p_text);
	_create_undo_state();
	int tlen = text.length();
	selection = selection_copy;
	selection.begin = MIN(selection.begin, tlen);
	selection.end = MIN(selection.end, tlen);
	selection.start_column = MIN(selection.start_column, tlen);
	queue_redraw();
}
void LineEdit::set_text_direction(Control::TextDirection p_text_direction) {