### Godot version

v4.0.beta.custom_build [13f0158]

### System information

Windows 10

### Issue description

When doing operations (`begin_complex_operation` and `end_complex_operation`) with multiple selections in TextEdit, some of these selections don't revert upon undo. This behavior is affects some of script editor's operations, like duplicate selection and delete lines.

### Steps to reproduce

Open script editor, make multiple selections. Keep in mind what you have selected. Do duplicate selection (ctrl+shift+D). Undo (ctrl+Z). Compare the result to what you remember.

### Minimal reproduction project

N/A
v_scroll->set_smooth_scroll_enabled(p_enabled);
	smooth_scroll_enabled = p_enabled;
}
bool TextEdit::is_smooth_scroll_enabled() const {
	return smooth_scroll_enabled;
}
void TextEdit::set_scroll_past_end_of_file_enabled(const bool p_enabled) {
	if (scroll_past_end_of_file_enabled == p_enabled) {
		return;
	}
	scroll_past_end_of_file_enabled = p_enabled;
	queue_redraw();
}
bool TextEdit::is_scroll_past_end_of_file_enabled() const {
	return scroll_past_end_of_file_enabled;
}
VScrollBar *TextEdit::get_v_scroll_bar() const {