### 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)

bool drop_override = Control::can_drop_data(p_point, p_data); 
	if (drop_override) {
		return drop_override;
	}
	return is_editable() && p_data.get_type() == Variant::STRING;
}
void LineEdit::drop_data(const Point2 &p_point, const Variant &p_data) {
	Control::drop_data(p_point, p_data);
	if (p_data.get_type() == Variant::STRING && is_editable()) {
		set_caret_at_pixel_pos(p_point.x);
		int caret_column_tmp = caret_column;
		bool is_inside_sel = selection.enabled && caret_column >= selection.begin && caret_column <= selection.end;
		if (Input::get_singleton()->is_key_pressed(Key::CTRL)) {
			is_inside_sel = selection.enabled && caret_column > selection.begin && caret_column < selection.end;
		}
		if (selection.drag_attempt) {
			selection.drag_attempt = false;
			if (!is_inside_sel) {
				if (!Input::get_singleton()->is_key_pressed(Key::CTRL)) {
					if (caret_column_tmp > selection.end) {
						caret_column_tmp = caret_column_tmp - (selection.end - selection.begin);
					}
					selection_delete();
				}