### 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)

return;
			}
			if (b->is_shift_pressed()) {
				shift_selection_check_pre(true);
			}
			set_caret_at_pixel_pos(b->get_position().x);
			if (b->is_shift_pressed()) {
				selection_fill_at_caret();
				selection.creating = true;
			} else {
				if (selecting_enabled) {
					const int triple_click_timeout = 600;
					const int triple_click_tolerance = 5;
					const bool is_triple_click = !b->is_double_click() && (OS::get_singleton()->get_ticks_msec() - last_dblclk) < triple_click_timeout && b->get_position().distance_to(last_dblclk_pos) < triple_click_tolerance;
					if (is_triple_click && text.length()) {
						
						selection.enabled = true;
						selection.begin = 0;
						selection.end = text.length();
						selection.double_click = true;
						last_dblclk = 0;
						set_caret_column(selection.begin);
						if (!pass && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
							DisplayServer::get_singleton()->clipboard_set_primary(text);
						}
					} else if (b->is_double_click()) {
						
						last_dblclk = OS::get_singleton()->get_ticks_msec();
						last_dblclk_pos = b->get_position();
						PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);